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Authors
Seneviratne, Sumudu Nimali https://orcid.org/0000-0003-2960-9269
Sachchithananthan, Sanathanee https://orcid.org/0000-0001-7345-3236
Gamage, Pavithra Sewwandi Angulugaha
Peiris, Renuka
Wickramasinghe, Vithanage Pujitha https://orcid.org/0000-0002-8355-1283
Somasundaram, Noel https://orcid.org/0000-0002-6241-7501
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Article History
Received: 7 May 2021
Accepted: 15 September 2021
First Online: 13 November 2021
Declarations
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: This study was conducted ethically in accordance with the Declaration of Helsinki and approved by the Ministry of Education, Sri Lanka (ED/01/21/02/06). Informed consent was obtained from all parents and teachers.
: Not applicable.
: The authors declare that they have no competing interests.
