Zhao, Shengliang
Pan, Zhengxia
Li, Yonggang
An, Yong
Zhao, Lu
Jin, Xin
Fu, Jian
Wu, Chun
Article History
Received: 25 June 2020
Accepted: 25 October 2020
First Online: 4 November 2020
Ethics approval and consent to participate
: The Medical Research Ethics Committee of Children's Hospital Affiliated to Chongqing Medical University approved the study, and this study obtained written informed consent from the families of all children.
: Not applicable.
: The authors declare that they have no competing interests.