Army aviation and the lower extremity amputee.
D000328:Adult; D000337:Aerospace Medicine; D000367:Age Factors; D000674:Amputees; D001186:Artificial Limbs; D006801:Humans; D007717:Knee; D007866:Leg / Q000601:surgery*; D008297:Male; D009042:Motivation; D014481:United States