Wei, Kai
Liu, Yong
Yang, Junjie
Gu, Nannan
Cao, Xinyi
Zhao, Xudong
Jiang, Lijuan
Li, Chunbo
Article History
Received: 30 June 2021
Accepted: 16 December 2021
First Online: 17 January 2022
Declarations
:
: Written informed consent was obtained from all participants and/or their proxy respondents, and the study was approved by the Research Ethics Committee of Peking University (IRB00001052–13074).
: Not applicable.
: The authors declare that they have no competing interests.