Chen, Jing
Sun, Dalong
Shi, Yonghui
Jin, Wei
Wang, Yanbin
Xi, Qian
Ren, Chuancheng
Funding for this research was provided by:
Key Programme (81571277)
China National Funds for Distinguished Young Scientists (81301200)
the scientific research project of the Shanghai health and family planning committee (201740207)
the academic leader training plan of Shanghai Pudong New Area health system (PWRd2016-07)
Article History
First Online: 3 March 2020
Compliance with ethical standards
:
: All authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.