Guo-Juan Qin

Risk factors for ectopic pregnancy: a multi-center case-control study

Cheng Li, Weihong Zhao, Qian Zhu et al. · BMC Pregnancy and Childbirth · 2015 · 173 citations · Full text

Contraceptive Use and the Risk of Ectopic Pregnancy: A Multi-Center Case-Control Study

Cheng Li, Weihong Zhao, Chun‐Xia Meng et al. · PLoS ONE · 2014 · 43 citations · Full text

Risk factors and clinical features of ovarian pregnancy: a case–control study

Qian Zhu, Cheng Li, Weihong Zhao et al. · BMJ Open · 2014 · 40 citations · Full text

Levonorgestrel decreases cilia beat frequency of human fallopian tubes and rat oviducts without changing morphological structure

Weihong Zhao, Qian Zhu, Mingxing Yan et al. · Clinical and Experimental Pharmacology and Physiology · 2014 · 39 citations · Full text

Hormonal Contraceptive, Cilia Beat Action, Gynecology +22

Association between levonorgestrel emergency contraception and the risk of ectopic pregnancy: a multicenter case-control study

Jian Zhang, Cheng Li, Weihong Zhao et al. · Scientific Reports · 2015 · 38 citations · Full text