Document is current
Any future updates will be listed below
-
Authors
-
Funding
Funding for this research was provided by:
Shanghai Medical Center of Key Programs for Female Reproductive Diseases (2017ZZ01016)
- License Information
-
More Information
Article History
Received: 16 May 2018
Accepted: 4 December 2018
First Online: 18 December 2018
Compliance with ethical standards
:
: We declare that we have no conflict of interest.
: This study obtained ethical approval from each institutional ethics committee of 10 collaborative hospitals (Obstetrics and Gynecology Hospital of Fudan University, First Affiliated Hospital of Sun Yat-sen University, First Affiliated Hospital of Chongqing Medical University, Gulou Clinical Medical College of Nanjing Medical University, Peking University First Hospital, Shandong Provincial Hospital of Shandong University, Shanghai First Maternity and Infant Health Institute Affiliated with Tongji University, Shengjing Hospital of China Medical University, Third Hospital Affiliated with GuangZhou Medical University, and Women’s Hospital School of Medicine at Zhejiang University). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all participants included in the study.
