Cui, Xu
He, Yuanbin
Huang, Wenhua
Chen, Liu
Wang, Yunjin
Zhou, Chaoming
Article History
Received: 8 March 2020
Accepted: 27 July 2020
First Online: 5 August 2020
Ethics approval and consent to participate
: This study was approved by the ethics committee of Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University and strictly adhered to the tenets of the Declaration of Helsinki (the code of ethical approval for scientific research projects, 2019 Ethical Scientific Research Approval No. 2005).
: Not applicable.
: The authors declare that they have no competing interests.