Assertion: neurofibromatosis's symptom | /r/HasProperty | develop before 10 years of age
Facets:
value: in nf1
type: LOCATION
value: often
type: TEMPORAL
value: before 10 years of age
type: TEMPORAL
Source sentences:
text: In NF1, symptoms are often present at birth or develop before 10 years of age.
text: In NF1, symptoms are often present at birth or develop before 10 years of age.