Shen, Menghan
Liang, Xiaoxia
Wu, Yushan
Fang, Shixin
Article History
Received: 12 July 2021
Accepted: 31 January 2022
First Online: 8 February 2022
Declarations
:
: This study adhered to the tenets of the Declaration of Helsinki. We obtained ethical approval SBRE-19-768 from the Survey and Behavioural Research Ethics Committee, Chinese University of Hong Kong. This study was retrospective in design. We used administrative and secondary datasets that are pseudonymized. There were no human participants directly involved. The informed consent was waived by the Survey and Behavioural Research Ethics Committee, Chinese University of Hong Kong.
: Not applicable.
: The authors declare that they have no competing interests.