[Progress in the study of orthopedics in China].
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D001859:Bone Neoplasms / Q000601:surgery; D005271:Femur Head Necrosis / Q000209:etiology*; D017102:Fracture Healing; D006801:Humans; D019637:Orthopedic Procedures; D012516:Osteosarcoma / Q000601:surgery