Children with genetic muscular disorders.
D000293:Adolescent; D000328:Adult; D000870:Anterior Horn Cells / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D003238:Connective Tissue / Q000473:pathology; D003677:Deficiency Diseases / Q000378:metabolism; D005260:Female; D006651:Histocytochemistry; D006801:Humans; D007223:Infant; D008297:Male; D008931:Mitochondria, Muscle / Q000473:pathology; D009119:Muscle Contraction; D009129:Muscle Tonus; D009135:Muscular Diseases / Q000235:genetics* / Q000473:pathology; D009136:Muscular Dystrophies / Q000235:genetics