@article{Niu2018, author = "Lu Niu and Ying Liu and Dan Luo and Shuiyuan Xiao", title = "{Appendix_S1 – Supplemental material for Current Smoking Behavior Among Medical Students in Mainland China: A Systematic Review and Meta-Analysis}", year = "2018", month = "9", url = "https://sage.figshare.com/articles/journal_contribution/Appendix_S1_Supplemental_material_for_Current_Smoking_Behavior_Among_Medical_Students_in_Mainland_China_A_Systematic_Review_and_Meta-Analysis/7140104", doi = "10.25384/SAGE.7140104.v1" }