About the Authors

Yanqing Zhou

Affiliation Department of Obstetrics and Gynecology, The Third Affiliated Hospital and Key laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institute in Guangdong Province, Guangzhou Medical University, Guangzhou, China

Xiaying Xu

Affiliation Department of Obstetrics and Gynecology, The Third Affiliated Hospital and Key laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institute in Guangdong Province, Guangzhou Medical University, Guangzhou, China

Huabing Lv

Affiliation Department of Obstetrics and Gynecology, The Third Affiliated Hospital and Key laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institute in Guangdong Province, Guangzhou Medical University, Guangzhou, China

Qirong Wen

Affiliation Department of Obstetrics and Gynecology, The Third Affiliated Hospital and Key laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institute in Guangdong Province, Guangzhou Medical University, Guangzhou, China

Juan Li

Affiliation Department of Obstetrics and Gynecology, The Third Affiliated Hospital and Key laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institute in Guangdong Province, Guangzhou Medical University, Guangzhou, China

Linyu Tan

Affiliation Department of Obstetrics and Gynecology, The Third Affiliated Hospital and Key laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institute in Guangdong Province, Guangzhou Medical University, Guangzhou, China

Jianqi Li

Affiliation Department of Obstetrics and Gynecology, The Third Affiliated Hospital and Key laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institute in Guangdong Province, Guangzhou Medical University, Guangzhou, China

Xiujie Sheng

xjsheng@gzemail.cn

Affiliation Department of Obstetrics and Gynecology, The Third Affiliated Hospital and Key laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institute in Guangdong Province, Guangzhou Medical University, Guangzhou, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XS. Performed the experiments: YZ XX. Analyzed the data: HL Jianqi Li. Contributed reagents/materials/analysis tools: LT QW Juan Li. Wrote the paper: YZ.