Attygalle, Udena Ruwindu
Hewawitharana, Gemunu
Wijesinghe, Champa Jayalakshmie http://orcid.org/0000-0002-0250-4515
Article History
Received: 18 October 2019
Accepted: 2 July 2020
First Online: 8 July 2020
Ethics approval and consent to participate
: The study was carried out after obtaining approval from the Ethical Review Committee, Faculty of Medicine, University of Ruhuna, Sri Lanka (Reference No. 2018/P/080). Written informed consent was obtained from parents/guardians of all children who participated in the study. In addition, assent was obtained from children over 12 years formally as per the requirement of the institutional review board and from younger children in a developmentally appropriate manner.
: Not applicable.
: The authors declare that they have no competing interests.