Behaviour of untreated affected muscles of the lower limbs in polio.
D006801:Humans; D007866:Leg; D009132:Muscles / Q000503:physiopathology*; D010243:Paralysis / Q000503:physiopathology / Q000628:therapy; D026741:Physical Therapy Modalities; D011051:Poliomyelitis / Q000503:physiopathology* / Q000628:therapy; D013997:Time Factors