Assertion: ngf | /r/HasProperty | expressed limbus
Facets:
value: in the basal
type: LOCATION
value: constitutively
type: MANNER
Source sentences:
text: Nerve growth factor (NGF) is a member of the neurotrophin family, and is constitutively expressed in the basal limbus with lower expression in the basal corneal epithelium 17 - 21 .