Funding for this research was provided by:
the Norwegian Programme for Capacity Development in Higher Education and Research for Development (MMY-13/0049)
Received: 22 February 2018
Accepted: 16 May 2018
First Online: 22 May 2018
Ethics approval and consent to participate
: Ethical clearances were obtained from the Ethical Review Committee of Prince of Songkla University, Thailand, the Department of Medical Research, Myanmar and the Norwegian National Research Ethics Committee (NSD), Norway.
: The authors declare that they have no competing interests.
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