Chen, Qiang
Yang, Rong
Lei, Yu-Qing
Sun, Kai-Peng
Cao, Hua
Article History
Received: 19 February 2021
Accepted: 12 October 2021
First Online: 22 October 2021
Declarations
:
: This study was approved by the ethics committee of Fujian Maternity and Child Health Hospital and strictly adhered to the tenets of the Declaration of Helsinki. The informed consent was obtained from all patients.
: Not applicable.
: The authors declare no competing interests.