Li, Tianyi
Ma, Jiannan
Hong, Siqi
Luo, Yuanyuan
Li, Xiujuan
Li, Tingsong
Jiang, Li http://orcid.org/0000-0001-5340-6563
Article History
Received: 7 October 2020
Accepted: 12 February 2021
First Online: 20 February 2021
Ethics approval and consent to participate
: This study was approved by the ethics committee of Children’s Hospital of Chongqing Medical University, and written consent was obtained from the parents of each child.
: Not Applicable.
: The authors declare that they have no competing interests.