system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Standard site for primary bone graft -a) Pelvisb) Greater trochanterc) Medial malleolusd) Lateral melleoluse) Fibula
assistant
The correct answer is  Standard site for primary cancellous bone graft → Iliac crest of pelvis.
Standard site for primary cortical bone graft → fibula.