Funding for this research was provided by:
Hong Kong Baptist University (FRG2/15-16/052)
Received: 17 March 2020
Accepted: 20 April 2021
First Online: 1 May 2021
: The study was approved by the Committee on the Use of Human and Animal Subjects in Teaching and Research, Hong Kong Baptist University (HASC no: FRG2/15-16/052). All participants provided informed consent before the survey was conducted.
: Not applicable.
: The authors declare that they have no competing interests.