Additional file 1: of Vascularized pedicle iliac bone grafts as a hip-preserving surgery for femur head necrosis: a systematic review

Appendix 1. Search strategy: PubMed. Appendix 2. Oxford Centre for Evidence-based Medicine—Levels of Evidence (March 2009). Appendix 3. Quality evaluation of included studies case series studies. (DOCX 33 kb)