title: [Characterization of a control group for evaluation of the effectiveness of treatment of patients with osteogenic sarcoma].
mesh_terms: D000671:Amputation, Surgical; D001859:Bone Neoplasms / Q000601:surgery*; D003131:Combined Modality Therapy; D005500:Follow-Up Studies; D006801:Humans; D012516:Osteosarcoma / Q000601:surgery*
vernacular_title: Charakterisierung einer Kontrollgruppe zur Bewertung der Effektivität der Behandlung von Patienten mit osteogenen Sarkom.