Pan, Hai-Tao
Shi, Xiao-Liang
Fang, Min
Sun, Xiang-Mei
Chen, Pan-Pan
Ding, Jin-Long
Xia, Gui-Yu
Yu, Bin
Zhang, Tao
Zhu, Hong-Dan
Article History
Received: 10 September 2021
Accepted: 3 February 2022
First Online: 14 February 2022
Declarations
:
: The present study was approved by the Ethics Committee of Shaoxing Maternity and Child Health Care Hospital (Ethical Application Ref: 2018022). This study complied with the basic ethical principles contained in the Helsinki Declaration in its most recent version, from 2013. All participants signed a written informed consent form prior to their participation in this study.
: Not applicable.
: The authors declare there are no competing interests.