Additional file 1: of Vascularized pedicle iliac bone grafts as a hip-preserving surgery for femur head necrosis: a systematic review Fan Yang Qiushi Wei Xiaojun Chen Guoju Hong Zhenqiu Chen Yaolong Chen Wei He 10.6084/m9.figshare.9740645.v1 https://springernature.figshare.com/articles/journal_contribution/Additional_file_1_of_Vascularized_pedicle_iliac_bone_grafts_as_a_hip-preserving_surgery_for_femur_head_necrosis_a_systematic_review/9740645 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) 2019-08-28 04:08:09 Osteonecrosis Femoral head Bone grafts Vascularized pedicle ilium Systematic review