About the Authors

Cunzhong Yuan

kongbeihua@yahoo.com.cn (BK); yuancunzhong@126.com (CY)

Affiliations Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Ji'nan, Shandong, China, Gynecology Oncology Key Library of Shandong Province, Qilu Hospital of Shandong University, Ji'nan, Shandong, China

Xiao Li

Affiliations Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Ji'nan, Shandong, China, Gynecology Oncology Key Library of Shandong Province, Qilu Hospital of Shandong University, Ji'nan, Shandong, China

Shi Yan

Affiliations Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Ji'nan, Shandong, China, Gynecology Oncology Key Library of Shandong Province, Qilu Hospital of Shandong University, Ji'nan, Shandong, China

Qifeng Yang

Affiliation Department of Breast Surgery, Qilu Hospital of Shandong University, Ji'nan, Shandong, China

Xiaoyan Liu

Affiliations Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Ji'nan, Shandong, China, Gynecology Oncology Key Library of Shandong Province, Qilu Hospital of Shandong University, Ji'nan, Shandong, China

Beihua Kong

kongbeihua@yahoo.com.cn (BK); yuancunzhong@126.com (CY)

Affiliations Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Ji'nan, Shandong, China, Gynecology Oncology Key Library of Shandong Province, Qilu Hospital of Shandong University, Ji'nan, Shandong, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: QY BK. Performed the experiments: CY X. Li. Analyzed the data: CY X. Li. Contributed reagents/materials/analysis tools: CY SY X. Liu. Wrote the paper: CY.