The 20th anniversary of the American Association of Hip and Knee Surgeons: introduction.
Mary I
MI
O'Connor
D006621:Hip Joint / Q000601:surgery; D049673:History, 20th Century; D007719:Knee Joint / Q000601:surgery; D009985:Orthopedics / Q000592:standards; D012955:Societies, Medical / Q000266:history*; D014481:United States