Funding for this research was provided by:
Food and Health Bureau, Government of Hong Kong SAR, China (Reference no: 19201281)
Received: 15 July 2022
Accepted: 21 October 2022
First Online: 16 November 2022
: The study has been approved by the Institutional Review Board of the University of Hong Kong/Hospital Authority Hong Kong West Cluster (HKU/HA HKW IRB), Reference no. UW 22-098. Written informed consent will be obtained from the parent or legal guardian of all student participants.
: No information relating to a person will be included in the publication. The consent from participants is not applicable in this part.
: The authors declare that they have no competing interests.