279843007: Structure of spiral prominence of cochlear duct (body structure)

• SNOMED CT Concept\Body structure\Anatomical or acquired body structure (body structure)\Anatomical structure\...
• \Body organ structure\Structure of sensory organ\Ear structure\Ear part (body structure)\Inner ear and/or Eustachian canal structures (body structure)\Inner ear structure (body structure)\Labyrinth structure\Vestibular structure\Vestibular apparatus\Membranous labyrinth structure\Cochlear structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body organ structure\Structure of sensory organ\Ear structure\Ear part (body structure)\Inner ear and/or Eustachian canal structures (body structure)\Inner ear structure (body structure)\Labyrinth structure\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body organ structure\Structure of bone organ\Bone structure\Type of bone\Structure of irregular bone (body structure)\Structure of pneumatic bone\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body organ structure\Structure of bone organ\Bone structure\Regional bone structure\Bone structure of head and/or neck (body structure)\Bone structure of head\Bone structure of cranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body organ structure\Structure of bone organ\Bone structure\Bone part\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body organ structure\Organ cavity structure\Structure of organ cavity subdivision\Vestibular structure\Vestibular apparatus\Membranous labyrinth structure\Cochlear structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body organ structure\Organ part\Ear part (body structure)\Inner ear and/or Eustachian canal structures (body structure)\Inner ear structure (body structure)\Labyrinth structure\Vestibular structure\Vestibular apparatus\Membranous labyrinth structure\Cochlear structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body organ structure\Organ part\Ear part (body structure)\Inner ear and/or Eustachian canal structures (body structure)\Inner ear structure (body structure)\Labyrinth structure\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body organ structure\Structure of ligament\Non-skeletal ligament structure (body structure)\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body organ structure\Structure of ligament\Structure of ligament of head and neck (body structure)\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Physical anatomical entity\Group of anatomical entities (body structure)\Inner ear and/or Eustachian canal structures (body structure)\Inner ear structure (body structure)\Labyrinth structure\...
• \Vestibular structure\Vestibular apparatus\Membranous labyrinth structure\Cochlear structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body system structure\Structure of subdivision of organ system (body structure)\Entire subdivision of organ system (body structure)\Structure of auditory system subdivision (body structure)\Structure of peripheral auditory system\Ear structure\Ear part (body structure)\Inner ear and/or Eustachian canal structures (body structure)\Inner ear structure (body structure)\Labyrinth structure\Vestibular structure\Vestibular apparatus\Membranous labyrinth structure\Cochlear structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body system structure\Structure of subdivision of organ system (body structure)\Entire subdivision of organ system (body structure)\Structure of auditory system subdivision (body structure)\Structure of peripheral auditory system\Ear structure\Ear part (body structure)\Inner ear and/or Eustachian canal structures (body structure)\Inner ear structure (body structure)\Labyrinth structure\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body system structure\Structure of special senses organ system\Structure of vestibular system (body structure)\Labyrinth structure\Vestibular structure\Vestibular apparatus\Membranous labyrinth structure\Cochlear structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body system structure\Structure of special senses organ system\Structure of vestibular system (body structure)\Labyrinth structure\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body system structure\Structure of special senses organ system\Structure of auditory system (body structure)\Structure of auditory system subdivision (body structure)\Structure of peripheral auditory system\Ear structure\Ear part (body structure)\Inner ear and/or Eustachian canal structures (body structure)\Inner ear structure (body structure)\Labyrinth structure\Vestibular structure\Vestibular apparatus\Membranous labyrinth structure\Cochlear structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body system structure\Structure of special senses organ system\Structure of auditory system (body structure)\Structure of auditory system subdivision (body structure)\Structure of peripheral auditory system\Ear structure\Ear part (body structure)\Inner ear and/or Eustachian canal structures (body structure)\Inner ear structure (body structure)\Labyrinth structure\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body system structure\Structure of musculoskeletal system (body structure)\Structure of regional musculoskeletal system (body structure)\Structure of musculoskeletal system of head and/or neck (body structure)\Musculoskeletal structure of head\Bone and/or joint structure of cranium (body structure)\Bone and/or joint structure of neurocranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body system structure\Structure of musculoskeletal system (body structure)\Structure of regional musculoskeletal system (body structure)\Structure of musculoskeletal system of head and/or neck (body structure)\Musculoskeletal structure of head\Bone and/or joint structure of cranium (body structure)\Bone structure of cranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body system structure\Structure of musculoskeletal system (body structure)\Structure of regional musculoskeletal system (body structure)\Structure of musculoskeletal system of head and/or neck (body structure)\Musculoskeletal structure of head\Bone structure of head\Bone structure of cranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body system structure\Structure of musculoskeletal system (body structure)\Structure of regional musculoskeletal system (body structure)\Regional bone structure\Bone structure of head and/or neck (body structure)\Bone structure of head\Bone structure of cranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body system structure\Structure of musculoskeletal system (body structure)\Bone and/or joint structure (body structure)\Bone structure\Type of bone\Structure of irregular bone (body structure)\Structure of pneumatic bone\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body system structure\Structure of musculoskeletal system (body structure)\Bone and/or joint structure (body structure)\Bone structure\Regional bone structure\Bone structure of head and/or neck (body structure)\Bone structure of head\Bone structure of cranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body system structure\Structure of musculoskeletal system (body structure)\Bone and/or joint structure (body structure)\Bone structure\Bone part\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body system structure\Structure of musculoskeletal system (body structure)\Skeletal system structure\Structure of bony skeleton\Bony skeleton subdivision\Bone structure\Type of bone\Structure of irregular bone (body structure)\Structure of pneumatic bone\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body system structure\Structure of musculoskeletal system (body structure)\Skeletal system structure\Structure of bony skeleton\Bony skeleton subdivision\Bone structure\Regional bone structure\Bone structure of head and/or neck (body structure)\Bone structure of head\Bone structure of cranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body system structure\Structure of musculoskeletal system (body structure)\Skeletal system structure\Structure of bony skeleton\Bony skeleton subdivision\Bone structure\Bone part\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body system structure\Structure of musculoskeletal system (body structure)\Skeletal system structure\Axial skeleton structure\Bone structure of head\Bone structure of cranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body tissue structure\Connective tissue structure\Structure of ligament\...
• \Non-skeletal ligament structure (body structure)\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Structure of ligament of head and neck (body structure)\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Structure of half of body lateral to midsagittal plane (body structure)\Structure of half of head lateral to midsagittal plane (body structure)\Structure of auriculotemporal region\Auricular region structure\Ear structure\Ear part (body structure)\Inner ear and/or Eustachian canal structures (body structure)\Inner ear structure (body structure)\Labyrinth structure\Vestibular structure\Vestibular apparatus\Membranous labyrinth structure\Cochlear structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Structure of half of body lateral to midsagittal plane (body structure)\Structure of half of head lateral to midsagittal plane (body structure)\Structure of auriculotemporal region\Auricular region structure\Ear structure\Ear part (body structure)\Inner ear and/or Eustachian canal structures (body structure)\Inner ear structure (body structure)\Labyrinth structure\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Structure of half of body lateral to midsagittal plane (body structure)\Structure of half of head lateral to midsagittal plane (body structure)\Structure of vestibular system (body structure)\Labyrinth structure\Vestibular structure\Vestibular apparatus\Membranous labyrinth structure\Cochlear structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Structure of half of body lateral to midsagittal plane (body structure)\Structure of half of head lateral to midsagittal plane (body structure)\Structure of vestibular system (body structure)\Labyrinth structure\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Structure of half of body lateral to midsagittal plane (body structure)\Structure of half of head lateral to midsagittal plane (body structure)\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Structure of regional musculoskeletal system (body structure)\Structure of musculoskeletal system of head and/or neck (body structure)\Musculoskeletal structure of head\Bone and/or joint structure of cranium (body structure)\Bone and/or joint structure of neurocranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Structure of regional musculoskeletal system (body structure)\Structure of musculoskeletal system of head and/or neck (body structure)\Musculoskeletal structure of head\Bone and/or joint structure of cranium (body structure)\Bone structure of cranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Structure of regional musculoskeletal system (body structure)\Structure of musculoskeletal system of head and/or neck (body structure)\Musculoskeletal structure of head\Bone structure of head\Bone structure of cranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Structure of regional musculoskeletal system (body structure)\Regional bone structure\Bone structure of head and/or neck (body structure)\Bone structure of head\Bone structure of cranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Body part structure\Upper body structure\Upper body part structure\Structure of head and/or neck (body structure)\Structure of ear, nose, and/or throat\Ear structure\Ear part (body structure)\Inner ear and/or Eustachian canal structures (body structure)\Inner ear structure (body structure)\Labyrinth structure\Vestibular structure\Vestibular apparatus\Membranous labyrinth structure\Cochlear structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Body part structure\Upper body structure\Upper body part structure\Structure of head and/or neck (body structure)\Structure of ear, nose, and/or throat\Ear structure\Ear part (body structure)\Inner ear and/or Eustachian canal structures (body structure)\Inner ear structure (body structure)\Labyrinth structure\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Body part structure\Upper body structure\Upper body part structure\Structure of head and/or neck (body structure)\Structure of musculoskeletal system of head and/or neck (body structure)\Musculoskeletal structure of head\Bone and/or joint structure of cranium (body structure)\Bone and/or joint structure of neurocranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Body part structure\Upper body structure\Upper body part structure\Structure of head and/or neck (body structure)\Structure of musculoskeletal system of head and/or neck (body structure)\Musculoskeletal structure of head\Bone and/or joint structure of cranium (body structure)\Bone structure of cranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Body part structure\Upper body structure\Upper body part structure\Structure of head and/or neck (body structure)\Structure of musculoskeletal system of head and/or neck (body structure)\Musculoskeletal structure of head\Bone structure of head\Bone structure of cranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Body part structure\Upper body structure\Upper body part structure\Structure of head and/or neck (body structure)\Head structure\Head part\Structure of subregion of head\Structure of half of head lateral to midsagittal plane (body structure)\Structure of auriculotemporal region\Auricular region structure\Ear structure\Ear part (body structure)\Inner ear and/or Eustachian canal structures (body structure)\Inner ear structure (body structure)\Labyrinth structure\Vestibular structure\Vestibular apparatus\Membranous labyrinth structure\Cochlear structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Body part structure\Upper body structure\Upper body part structure\Structure of head and/or neck (body structure)\Head structure\Head part\Structure of subregion of head\Structure of half of head lateral to midsagittal plane (body structure)\Structure of auriculotemporal region\Auricular region structure\Ear structure\Ear part (body structure)\Inner ear and/or Eustachian canal structures (body structure)\Inner ear structure (body structure)\Labyrinth structure\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Body part structure\Upper body structure\Upper body part structure\Structure of head and/or neck (body structure)\Head structure\Head part\Structure of subregion of head\Structure of half of head lateral to midsagittal plane (body structure)\Structure of vestibular system (body structure)\Labyrinth structure\Vestibular structure\Vestibular apparatus\Membranous labyrinth structure\Cochlear structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Body part structure\Upper body structure\Upper body part structure\Structure of head and/or neck (body structure)\Head structure\Head part\Structure of subregion of head\Structure of half of head lateral to midsagittal plane (body structure)\Structure of vestibular system (body structure)\Labyrinth structure\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Body part structure\Upper body structure\Upper body part structure\Structure of head and/or neck (body structure)\Head structure\Head part\Structure of subregion of head\Structure of half of head lateral to midsagittal plane (body structure)\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Body part structure\Upper body structure\Upper body part structure\Structure of head and/or neck (body structure)\Head structure\Head part\Musculoskeletal structure of head\Bone and/or joint structure of cranium (body structure)\Bone and/or joint structure of neurocranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Body part structure\Upper body structure\Upper body part structure\Structure of head and/or neck (body structure)\Head structure\Head part\Musculoskeletal structure of head\Bone and/or joint structure of cranium (body structure)\Bone structure of cranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Body region structure\Body part structure\Upper body structure\Upper body part structure\Structure of head and/or neck (body structure)\Head structure\Head part\Musculoskeletal structure of head\Bone structure of head\Bone structure of cranium\Bone structure of neurocranium\Temporal bone structure\Temporal bone part\Structure of petrous part of temporal bone\Part of petrous part of temporal bone (body structure)\Bony labyrinth structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct
• \Anatomical space structure (body structure)\Organ cavity structure\Structure of organ cavity subdivision\Vestibular structure\Vestibular apparatus\Membranous labyrinth structure\Cochlear structure\Bony cochlea structure\Cochlear canal structure\Spiral cochlear ligament structure\Spiral prominence of the cochlear duct

Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT core

Descriptions:

Id	Description	Lang	Type	Status	Case?	Module
417270015	Spiral prominence of the cochlear duct	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
4627000015	Structure of spiral prominence of cochlear duct (body structure)	en	Fully specified name	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
4627001016	Structure of spiral prominence of cochlear duct	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
530611000052115	prominentia spiralis hos ductus cochlearis	sv	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT Sweden NRC maintained module (core metadata concept)

Expanded Value Set

Reference Sets

Lateralizable body structure reference set (foundation metadata concept)

Anatomy structure and entire association reference set (foundation metadata concept)

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