Assertion: muscular dystrophy's child | /r/CapableOf | involve lower limbs
Facets:
value: more than the upper limbs
type: OTHER
Source sentences:
text: Children with SMA type 2 generally have three copies of the SMN2 gene.5 Muscle weakness is predominantly proximal (close to the center of the body) and involves the lower limbs more than the upper limbs.