Funding for this research was provided by:
Health and Medical Research Fund (04180017)
National Natural Science Foundation of China (71974165)
Received: 5 February 2021
Accepted: 16 April 2021
First Online: 28 April 2021
: The questionnaire and methodology for this study was approved by the Survey Behavioural Research Ethics Committee of the Chinese University of Hong Kong (Ethics approval number: SBRE-18-211). Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: All authors declare that they have no conflict of interest.