788233007: Entire hair follicle of flank (body structure)

SNOMED CT Concept\Body structure\Anatomical or acquired body structure (body structure)\Anatomical structure\...

\Body wall structure\Structure of abdominopelvic wall (body structure)\Structure of wall of abdominal proper segment of trunk\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)

\Body organ structure\Organ part\Skin part\Structure of skin region\Hair-bearing skin\Hair follicle structure\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body organ structure\Organ part\Skin part\Structure of skin region\Skin structure of trunk\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body organ structure\Organ part\Skin part\Structure of skin region\Skin structure of trunk\Skin of part of trunk\Skin structure of lower trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body organ structure\Organ part\Skin part\Structure of skin region\Skin structure of trunk\Skin of part of trunk\Skin structure of lateral region of trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body organ structure\Skin structure\Skin part\Structure of skin region\Hair-bearing skin\Hair follicle structure\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body organ structure\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body organ structure\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Skin of part of trunk\Skin structure of lower trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body organ structure\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Skin of part of trunk\Skin structure of lateral region of trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body organ structure\Skin structure\Skin appendage structure\Pilosebaceous apparatus structure (body structure)\Hair follicle structure\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)

\Body system structure\Structure of subdivision of organ system (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of subdivision of organ system (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin structure of trunk\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of subdivision of organ system (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin structure of trunk\Skin of part of trunk\Skin structure of lower trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of subdivision of organ system (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin structure of trunk\Skin of part of trunk\Skin structure of lateral region of trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of subdivision of organ system (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin part\Structure of skin region\Hair-bearing skin\Hair follicle structure\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of subdivision of organ system (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of subdivision of organ system (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Skin of part of trunk\Skin structure of lower trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of subdivision of organ system (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Skin of part of trunk\Skin structure of lateral region of trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of subdivision of organ system (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin appendage structure\Pilosebaceous apparatus structure (body structure)\Hair follicle structure\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of skin and/or mucous membrane (body structure)\Structure of skin and/or skin-associated mucous membrane\Skin structure\Skin part\Structure of skin region\Hair-bearing skin\Hair follicle structure\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of skin and/or mucous membrane (body structure)\Structure of skin and/or skin-associated mucous membrane\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of skin and/or mucous membrane (body structure)\Structure of skin and/or skin-associated mucous membrane\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Skin of part of trunk\Skin structure of lower trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of skin and/or mucous membrane (body structure)\Structure of skin and/or skin-associated mucous membrane\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Skin of part of trunk\Skin structure of lateral region of trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of skin and/or mucous membrane (body structure)\Structure of skin and/or skin-associated mucous membrane\Skin structure\Skin appendage structure\Pilosebaceous apparatus structure (body structure)\Hair follicle structure\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of skin and/or surface epithelium (body structure)\Skin structure\Skin part\Structure of skin region\Hair-bearing skin\Hair follicle structure\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of skin and/or surface epithelium (body structure)\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of skin and/or surface epithelium (body structure)\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Skin of part of trunk\Skin structure of lower trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of skin and/or surface epithelium (body structure)\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Skin of part of trunk\Skin structure of lateral region of trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of skin and/or surface epithelium (body structure)\Skin structure\Skin appendage structure\Pilosebaceous apparatus structure (body structure)\Hair follicle structure\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of integumentary system (body structure)\Integumentary system part (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of integumentary system (body structure)\Integumentary system part (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin structure of trunk\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of integumentary system (body structure)\Integumentary system part (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin structure of trunk\Skin of part of trunk\Skin structure of lower trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of integumentary system (body structure)\Integumentary system part (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin structure of trunk\Skin of part of trunk\Skin structure of lateral region of trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of integumentary system (body structure)\Integumentary system part (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin part\Structure of skin region\Hair-bearing skin\Hair follicle structure\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of integumentary system (body structure)\Integumentary system part (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of integumentary system (body structure)\Integumentary system part (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Skin of part of trunk\Skin structure of lower trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of integumentary system (body structure)\Integumentary system part (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Skin of part of trunk\Skin structure of lateral region of trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body system structure\Structure of integumentary system (body structure)\Integumentary system part (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin appendage structure\Pilosebaceous apparatus structure (body structure)\Hair follicle structure\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)

\Body tissue structure\Structure of soft tissue (body structure)\Skin and/or subcutaneous tissue structure (body structure)\...

\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin structure of trunk\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin structure of trunk\Skin of part of trunk\Skin structure of lower trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin structure of trunk\Skin of part of trunk\Skin structure of lateral region of trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)

\Skin structure\Skin part\Structure of skin region\Hair-bearing skin\Hair follicle structure\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Skin of part of trunk\Skin structure of lower trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Skin of part of trunk\Skin structure of lateral region of trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Skin structure\Skin appendage structure\Pilosebaceous apparatus structure (body structure)\Hair follicle structure\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)

\Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\Structure of abdominopelvic segment of trunk (body structure)\Structure of abdominopelvic wall (body structure)\Structure of wall of abdominal proper segment of trunk\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\Structure of abdominopelvic segment of trunk (body structure)\Abdomen proper segment of trunk\Structure of wall of abdominal proper segment of trunk\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\Structure of abdominopelvic segment of trunk (body structure)\Abdomen proper segment of trunk\Flank structure\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\Structure of abdominopelvic segment of trunk (body structure)\Skin structure of lower trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Skin and/or subcutaneous tissue structure (body structure)\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Skin and/or subcutaneous tissue structure (body structure)\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin structure of trunk\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Skin and/or subcutaneous tissue structure (body structure)\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin structure of trunk\Skin of part of trunk\Skin structure of lower trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Skin and/or subcutaneous tissue structure (body structure)\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin structure of trunk\Skin of part of trunk\Skin structure of lateral region of trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin part\Structure of skin region\Hair-bearing skin\Hair follicle structure\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Skin of part of trunk\Skin structure of lower trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin part\Structure of skin region\Skin structure of trunk\Skin of part of trunk\Skin structure of lateral region of trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin appendage structure\Pilosebaceous apparatus structure (body structure)\Hair follicle structure\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Body part structure\Lower body structure\Lower body part structure\Structure of abdominopelvic segment of trunk (body structure)\Structure of abdominopelvic wall (body structure)\Structure of wall of abdominal proper segment of trunk\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Body part structure\Lower body structure\Lower body part structure\Structure of abdominopelvic segment of trunk (body structure)\Abdomen proper segment of trunk\Structure of wall of abdominal proper segment of trunk\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Body part structure\Lower body structure\Lower body part structure\Structure of abdominopelvic segment of trunk (body structure)\Abdomen proper segment of trunk\Flank structure\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Body part structure\Lower body structure\Lower body part structure\Structure of abdominopelvic segment of trunk (body structure)\Skin structure of lower trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\Structure of abdominopelvic cross-sectional segment of trunk (body structure)\Structure of abdominopelvic wall (body structure)\Structure of wall of abdominal proper segment of trunk\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\Structure of abdominopelvic cross-sectional segment of trunk (body structure)\Abdomen proper segment of trunk\Structure of wall of abdominal proper segment of trunk\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\Structure of abdominopelvic cross-sectional segment of trunk (body structure)\Abdomen proper segment of trunk\Flank structure\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\Structure of abdominopelvic segment of trunk (body structure)\Structure of abdominopelvic wall (body structure)\Structure of wall of abdominal proper segment of trunk\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\Structure of abdominopelvic segment of trunk (body structure)\Abdomen proper segment of trunk\Structure of wall of abdominal proper segment of trunk\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\Structure of abdominopelvic segment of trunk (body structure)\Abdomen proper segment of trunk\Flank structure\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\Structure of abdominopelvic segment of trunk (body structure)\Skin structure of lower trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Body part structure\Trunk structure\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Body part structure\Trunk structure\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin structure of trunk\Structure of hair follicle of trunk (body structure)\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Body part structure\Trunk structure\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin structure of trunk\Skin of part of trunk\Skin structure of lower trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Body part structure\Trunk structure\Skin and/or subcutaneous tissue structure of trunk (body structure)\Skin structure of trunk\Skin of part of trunk\Skin structure of lateral region of trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Body part structure\Trunk structure\Structure of lateral region of trunk\Flank structure\Skin and/or subcutaneous tissue structure of flank (body structure)\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)
\Body region structure\Body part structure\Trunk structure\Structure of lateral region of trunk\Skin structure of lateral region of trunk\Skin structure of flank\Structure of hair follicle of flank\Entire hair follicle of flank (body structure)

Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2020. Module: SNOMED CT core

Descriptions:

Id Description Lang Type Status Case? Module

3779641012 Entire hair follicle of flank (body structure) en Fully specified name Active Entire term case insensitive (core metadata concept) SNOMED CT core

3779642017 Entire hair follicle of flank en Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT core

7132741000172111 volledige folliculus pili van flank nl Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) Belgian module (core metadata concept)

7132751000172113 gehele haarfollikel van flank nl Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) Belgian module (core metadata concept)

7132761000172110 gehele folliculus pili van flank nl Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) Belgian module (core metadata concept)

Expanded Value Set

Outbound Relationships	Type	Target	Active	Characteristic	Refinability	Group	Values
Entire hair follicle of flank (body structure)	Is a	Structure of hair follicle of flank	true	Inferred relationship	Some
Entire hair follicle of flank (body structure)	Laterality	Side	false	Inferred relationship	Some

Inbound Relationships

Type

Active

Source

Characteristic

Refinability

Group

Reference Sets

Lateralizable body structure reference set (foundation metadata concept)