The classic. The first stages of coxa plana by Henning Waldenström. 1938.
D005271:Femur Head Necrosis / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007873:Legg-Calve-Perthes Disease / Q000266:history*; D009985:Orthopedics / Q000266:history*