Affiliations
*Department of Obstetrics, Women’s Hospital, Zhejiang University School
of Medicine,
Hangzhou,
China
†Department of Radiology, Women’s Hospital, Zhejiang University School
of Medicine, Hangzhou, China
§Department of Obstetrics, the Fourth Affiliated Hospital, Zhejiang
University School of Medicine, Yiwu, China
1Authors contributed equally to this study.