Funding for this research was provided by:
Young and Middle-aged Health Talents Training Program of Fujian Province (2019-ZQN-26)
Fujian Provincial Department of Science and Technology (2018Y9025)
Article History
Received: 16 September 2020
Accepted: 16 November 2020
First Online: 25 November 2020
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Fujian Maternity and Child Health Hospital, and written informed consent for participation was obtained from all participants.
: Not applicable.
: No potential conflict of interest was reported by the authors.