Progressive weakness in infancy and childhood.
Lewis
D W
DW
Berman
P H
PH
D001927:Brain Diseases / Q000150:complications*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D009046:Motor Neurons / Q000502:physiology; D009468:Neuromuscular Diseases / Q000209:etiology*; D013118:Spinal Cord Diseases / Q000150:complications*