Wickramasinghe, V.P. http://orcid.org/0000-0002-8355-1283
Arambepola, C.
Article History
Received: 12 July 2020
Accepted: 20 November 2022
First Online: 10 January 2023
Declarations
:
: Ethics approval was obtained from Ethics Review Committee, Faculty of Medicine, University of Colombo. Permission to approach school children were given by principals of the respective schools. Informed written consent was obtained from parents/guardians of minors and assent from children above 12 years.
: Not applicable.
: Authors declare no competing interests.