Electromyography and muscle biopsy in infantile spinal muscular atrophy.
D000293:Adolescent; D000328:Adult; D001706:Biopsy; D002648:Child; D002675:Child, Preschool; D004576:Electromyography; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D009043:Motor Activity; D009046:Motor Neurons; D009132:Muscles / Q000473:pathology / Q000503:physiopathology*; D009133:Muscular Atrophy / Q000473:pathology / Q000503:physiopathology*; D009210:Myofibrils; D013127:Spinal Nerves / Q000503:physiopathology; D013997:Time Factors