Pan, Mian
Zhang, Jun http://orcid.org/0000-0003-1509-9499
Zhan, Wenqiang
Ouyang, Xia
Jiang, Xiaoxiang
Yang, Danlin
Funding for this research was provided by:
Fujian Maternity and Child Health Hospital Innovation Project (YCXZ 18-21)
Article History
Received: 27 March 2020
Accepted: 28 August 2020
First Online: 4 September 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were approved by the Fujian Maternity and Child Health Hospital of China Ethics Committee (Ethical approval number: 2019-014), and are in accordance with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Because our study was retrospective and all clinical data were anonymized, consent for participation was not required.