Funding for this research was provided by:
Australian Research Council (FT14010085)
University Grant Committee (HKU741511H)
Received: 25 February 2020
Accepted: 9 April 2020
First Online: 16 April 2020
Ethics approval and consent to participate
: Ethics approval for the conduct of this study was obtained by the Department of Health of Hong Kong SAR and The University of Hong Kong Human Research Ethics Committee for Non-Clinical Faculties (ethics approval no.: EA270211). All participants provided signed informed consent prior to entering the study.
: Not applicable.
: The authors declare they have no competing interests.