Wang, Yi-Chen http://orcid.org/0000-0002-3034-7377
Law, Andrea
Namsanor, Jutamas
Sithithaworn, Paiboon
Funding for this research was provided by:
National University of Singapore (FY2017-FRC3-008)
Article History
Received: 12 October 2022
Accepted: 9 March 2023
First Online: 19 April 2023
Declarations
:
: Ethical approval was obtained from the Institutional Review Board of National University of Singapore, Singapore (Reference code: S-19-283) and Khon Kaen University, Thailand (Reference code: HE601370). The purpose, procedure, risk and benefit of the survey were explained to local health center staff, village heads and health volunteers to obtain permission for field work and for them to inform the villagers about the survey beforehand. Informed consent was obtained from the participants before the survey was conducted.
: Not applicable.
: The authors declare that they have no competing interests.