Funding for this research was provided by:
General Research Fund, University Grants Commitee (14616117)
Received: 5 March 2021
Accepted: 23 June 2021
First Online: 17 July 2021
: The study was reviewed and approved by the Joint Chinese University of Hong Kong – New Territories East Cluster Clinical Research Ethics Committee (Ref. No.: 2017.018). All participants in the study have provided written informed consent to take part in the study.
: Not applicable.
: The authors declare that they have no competing interests.