Funding for this research was provided by:
University of Hong Kong (101000661, 101000500)
Received: 18 March 2020
Accepted: 24 July 2020
First Online: 10 August 2020
Ethics approval and consent to participate
: The study protocol was reviewed and approved by the Institutional Review Board of the University of Hong Kong/Hospital Authority Hong Kong West Cluster (HKU/HA HKW IRB) before project commencement (Reference Number: UW 15–319). Written informed consent was obtained from all participating students prior to the experiment.
: Not applicable.
: The authors declare that they have no conflict of interest.