Effect of treatment of a previous ectopic pregnancy on in vitro fertilization– intracytoplasmic sperm injection outcomes: a retrospective cohort study Zhen Xu, M.D., Lei Yan, M.D., Ph.D., Wen Liu, M.D., Xinxin Xu, M.D., Miao Li, M.D., Lingling Ding, M.D., Jinlong Ma, M.D., Ph.D., Zi- Jiang Chen, M.D., Ph.D. Fertility and Sterility Volume 104, Issue 6, Pages 1446-1451.e3 (December 2015) DOI: 10.1016/j.fertnstert.2015.08.034 Copyright © 2015 American Society for Reproductive Medicine Terms and Conditions
Figure 1 Database searching pathway and group divisions. Fertility and Sterility 2015 104, 1446-1451.e3DOI: (10.1016/j.fertnstert.2015.08.034) Copyright © 2015 American Society for Reproductive Medicine Terms and Conditions