Funding for this research was provided by:
Universiti Kebangsaan Malaysia (GGPM-2018-047)
ASEAN Secretariat (FF-2019-124)
Received: 20 August 2020
Accepted: 19 April 2021
First Online: 27 April 2021
: This study was approved by the Medical Ethics Committee of the National University of Malaysia (UKM) (reference no. UKM PPI/111/8/JEP-2019-148) and the Department of Orang Asli Development (JAKOA), Ministry of Rural and Regional Development Malaysia. Written informed consent was obtained from all participants in this study.
: All authors approved the final draft for journal submission.
: The authors declare that they have no competing interests.