title: [On the problem of roentgen preirradiation and difficulty in histological diagnosis of osteogenic sarcoma].
mesh_terms: D001859:Bone Neoplasms; D006801:Humans; D009369:Neoplasms; D012516:Osteosarcoma / Q000532:radiotherapy*; D012509:Sarcoma
keywords: SARCOMA, OSTEOGENIC/radiotherapy