About the Authors

Xiurong Tan

Roles Conceptualization, Writing – original draft

Current Address: No. 64 Mianshan Road, Youxian District, Mianyang City, Sichuan Province, China.; No. 899 Pinghai Road, Gusu District, Suzhou City, Jiangsu Province, China.

Affiliations Department of Obstetrics and Gynecology, Sichuan Science City Hospital, China, Department of Obstetrics and Gynecology, The First Affiliated Hospital of SuZhou University, China

Hong Zhang

Roles Data curation, Formal analysis

Current Address: No. 899 Pinghai Road, Gusu District, Suzhou City, Jiangsu Province, China.

Affiliation Department of Obstetrics and Gynecology, The First Affiliated Hospital of SuZhou University, China

Chun Yang

Roles Visualization

chenjunhui1980@sina.com

Current Address: No. 64 Mianshan Road, Youxian District, Mianyang City, Sichuan Province, China.

Affiliation Department of Obstetrics and Gynecology, Sichuan Science City Hospital, China

Junhui Chen

Roles Project administration, Supervision

Current Address: No. 64 Mianshan Road, Youxian District, Mianyang City, Sichuan Province, China.

Affiliation Department of Obstetrics and Gynecology, Sichuan Science City Hospital, China

Competing Interests

The authors have declared that no competing interests exist.