Funding for this research was provided by:
Health and Family Planning Commission of Wuhan municipality (WX14C49)
Natural Science Foundation of Hubei Province (2013CKB026)
Received: 19 August 2020
Accepted: 25 December 2020
First Online: 9 January 2021
Ethics approval and consent to participate
: The Ethics Committee of Wuhan Children’s Hospital (No.2020R012) gave a final approval for this study. Although the data were collected anonymized and centrally, all guardians of patients signed written informed consent for participate.
: All guardians of patients signed written informed consent for publication.
: The authors declare that they have no competing interest.