title: Approach to diagnosis in the child with muscle weakness.
mesh_terms: D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D004568:Electrodiagnosis; D005260:Female; D005684:Gait; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009123:Muscle Hypotonia / Q000175:diagnosis; D009135:Muscular Diseases / Q000175:diagnosis* / Q000235:genetics; D009136:Muscular Dystrophies / Q000175:diagnosis; D009224:Myotonia Congenita / Q000175:diagnosis; D010808:Physical Examination / Q000379:methods; D012021:Reflex, Abnormal