aphasia
type: Concept
narrower: primary progressive aphasia

primary progressive nonfluent aphasia
type: Concept
broader: primary progressive aphasia

dementia
type: Concept
narrower: primary progressive aphasia

concepts
type: Collection
type: ConceptGroup
member: primary progressive aphasia

primary progressive aphasia
type: Concept
narrower: primary progressive nonfluent aphasia
broader: dementia
broader: aphasia