Received: 26 March 2021
Accepted: 5 January 2022
First Online: 15 January 2022
: Written informed consent was obtained from all guardians of the children enrolled in the study. The study received an ethical approval from the ethics committee of the Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital). All procedures performed in studies involving human participants were in accordance with the ethical standards of the Medical Ethics Committee of Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), ethics number:2021R018-E01.
: Not applicable
: The authors declare that they have no competing interests.