This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Orthopaedics
[{'content': "T - 10 Protocol' for treatment of osteosarcoma includes all of the following except - \nSelect and explain. \nA. High dose methotrexate, B. Bleomycin, Cyclophosphamide, Doxorubicin (BCD), C. Vincristine, D. Etoposide", 'role': 'user'}, {'content': "Answer: D \nExplanation: The T-10 protocol and its variants consists in a chemotherapy regimen with high doses of methotrexate, doxorubicin, cisplatin and a combination of bleomycin + Cyclophosphamide + Dactinomycin.\nAlthough most textbooks, do not include `Vincristine' in the description of 'T-10' protocol for osteosarcoma, this chemotherapeutic agent (vincristine) has been described in the original description of 'T-10, Regimen by 'Rosen' Vincristine is also included on a constituent of the T10 Regimen in some textbooks including 'Principles and Practice of Pediateric Oncology' 5th /1102.", 'role': 'assistant'}]