Funding for this research was provided by:
Natural Science Foundation of Jiangxi Province (20171BAB215034)
Health and Family Planning Commission of Jiangxi Province (2019B129, 20183063)
Received: 30 November 2020
Accepted: 1 December 2020
First Online: 11 December 2020
Ethics approval and consent to participate
: The study adhered to the tenets of the Declaration of Helsinki and had received approval from the Institutional Review Board and Research Ethics Committee of The First Affiliated Hospital of Nan Chang University, Nanchang, Jiangxi. Written, informed consent was obtained from all participants before their inclusion in this study. We obtained written informed consent from the parents of the participant under the age of 16.
: Written informed consent for publication of identifying images or other personal or clinical details was obtained from all of the participants. They also were obtained from the parents of any participant under the age of 18.
: The authors declare that they have no competing interests.