title: Muscle biopsy in hypotonic children.
mesh_terms: D001706:Biopsy; D002648:Child; D003937:Diagnosis, Differential; D006801:Humans; D008607:Intellectual Disability / Q000473:pathology; D009123:Muscle Hypotonia / Q000151:congenital / Q000473:pathology*; D009132:Muscles / Q000473:pathology; D009133:Muscular Atrophy / Q000473:pathology; D009136:Muscular Dystrophies / Q000473:pathology; D009220:Myositis / Q000473:pathology