Jia, Yanping
Li, Kunming
Zheng, Caihong
Tang, Yuanyuan
Bai, Dandan
Yin, Jiqing
Chi, Fengli
Zhang, Yalin
Li, Yanhe
Tu, Zhifen
Wang, Yu
Pan, Jiaping
Liang, Shanshan
Guo, Yi
Ruan, Jingling
Kong, Pengcheng
Wu, Bi
Hu, Ye
Wang, Hong
Liu, Wenqiang
Teng, Xiaoming
Gao, Shaorong http://orcid.org/0000-0003-1041-3928
Funding for this research was provided by:
National Natural Science Foundation of China (31721003)
Article History
Received: 5 May 2020
Accepted: 8 September 2020
First Online: 18 September 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of Shanghai First Maternity and Infant Hospital of Tongji University.
: All subjects participating in this study signed their informed consents.