Fong, Ted C. T.
Ho, Rainbow T. H.
Article History
Received: 18 December 2020
Accepted: 29 August 2021
First Online: 10 September 2021
Declarations
:
: Written informed consent was obtained from each adolescent before study inclusion. The study was conducted in accordance with the Declaration of Helsinki and ethical approval (HREC reference number = EA1809036) was obtained from the Human Research Ethics Committee of The University of Hong Kong for this secondary analysis.
: Not applicable<b>.</b>
: The authors declare that they have no competing interests.