Funding for this research was provided by:
Wellcome Trust UK (GR071587MA)
Australian National Health and Medical Research Council (268055)
National Health and Medical Research Council (585426)
Article History
Received: 24 June 2020
Accepted: 30 October 2020
First Online: 16 November 2020
Ethics approval and consent to participate
: Ethics approval was obtained from Sukhothai Thammathirat Open University Research and Development Institute (protocol 0522/10) and the Australian National University Human Research Ethics Committee (protocols 2004344 and 2009/570). Informed written consent was obtained from all participants upon recruitment at baseline.
: Not applicable.
: The authors declare that they have no competing interests.