About the Authors

Lin Wang

Contributed equally to this work with: Lin Wang, Yan-Jie Chen

Affiliation Department of Obstetrics and Gynecology, Shanghai Zhongshan Hospital, Fudan University, Shanghai, China

Yan-Jie Chen

Contributed equally to this work with: Lin Wang, Yan-Jie Chen

Affiliation Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China

Kai Xu

Affiliation Department of Obstetrics and Gynecology, Shanghai Zhongshan Hospital, Fudan University, Shanghai, China

Hua Xu

Affiliation Department of Obstetrics and Gynecology, Shanghai Zhongshan Hospital, Fudan University, Shanghai, China

Xi-Zhong Shen

shen.xizhong@zs-hospital.sh.cn (XZS); tu.ruiqin@zh-hospital.sh.cn (RQT)

Affiliation Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China

Rui-Qin Tu

shen.xizhong@zs-hospital.sh.cn (XZS); tu.ruiqin@zh-hospital.sh.cn (RQT)

Affiliation Department of Obstetrics and Gynecology, Shanghai Zhongshan Hospital, Fudan University, Shanghai, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LW YJC XZS RQT. Performed the experiments: YJC KX. Analyzed the data: YJC. Contributed reagents/materials/analysis tools: HX. Wrote the paper: LW YJC XZS RQT. Revised the manuscript: XZS RQT.