About the Authors

Yanchun Liang

Affiliation Department of Obstetrics and Gynecology, First Affiliated Hospital of Sun Yat-sen University, No. 58, the 2nd Zhongshan Road, Yuexiu District, Guangzhou city, Guangdong Province, 510080, China

Wei Wang

Affiliation Department of Obstetrics and Gynecology, First Affiliated Hospital of Sun Yat-sen University, No. 58, the 2nd Zhongshan Road, Yuexiu District, Guangzhou city, Guangdong Province, 510080, China

Jiaming Huang

Affiliation Department of Obstetrics and Gynecology, First Affiliated Hospital of Sun Yat-sen University, No. 58, the 2nd Zhongshan Road, Yuexiu District, Guangzhou city, Guangdong Province, 510080, China

Hao Tan

Affiliation Department of Obstetrics and Gynecology, First Affiliated Hospital of Sun Yat-sen University, No. 58, the 2nd Zhongshan Road, Yuexiu District, Guangzhou city, Guangdong Province, 510080, China

Tianyu Liu

Affiliation Department of Obstetrics and Gynecology, First Affiliated Hospital of Sun Yat-sen University, No. 58, the 2nd Zhongshan Road, Yuexiu District, Guangzhou city, Guangdong Province, 510080, China

Chunliang Shang

Affiliation Department of Obstetrics and Gynecology, First Affiliated Hospital of Sun Yat-sen University, No. 58, the 2nd Zhongshan Road, Yuexiu District, Guangzhou city, Guangdong Province, 510080, China

Duo Liu

Affiliation Department of Obstetrics and Gynecology, First Affiliated Hospital of Sun Yat-sen University, No. 58, the 2nd Zhongshan Road, Yuexiu District, Guangzhou city, Guangdong Province, 510080, China

Luyan Guo

Affiliation Department of Obstetrics and Gynecology, First Affiliated Hospital of Sun Yat-sen University, No. 58, the 2nd Zhongshan Road, Yuexiu District, Guangzhou city, Guangdong Province, 510080, China

Shuzhong Yao

yszlfy@163.com

Affiliation Department of Obstetrics and Gynecology, First Affiliated Hospital of Sun Yat-sen University, No. 58, the 2nd Zhongshan Road, Yuexiu District, Guangzhou city, Guangdong Province, 510080, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YL WW JH HT TL CS DL LG SY. Performed the experiments: YL WW TL CS. Analyzed the data: JH HT DL LG. Contributed reagents/materials/analysis tools: LG SY. Wrote the paper: YL WW LG SY.