Chen, Lin
Tang, Xiao-Jiao
Chen, Xin-Ke
Ke, Ning
Liu, Qin
Article History
Received: 25 January 2022
Accepted: 30 May 2022
First Online: 7 June 2022
Declarations
:
: This study complied with the tenets of the Declaration of Helsinki. This research comes from education reform project (the Project on University First-Class Undergraduate Course of Chongqing Education Commission NO.2021–168) and are exempt from Ethics Committee of the Children’s Hospital of Chongqing Medical University. The informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.