Funding for this research was provided by:
Bill and Melinda Gates Foundation (NA)
Wellcome Trust (NA)
Received: 13 October 2018
Accepted: 8 April 2019
First Online: 24 April 2019
Ethics approval and consent to participate
: Ethical approval for the study was received from the Lao National Ethics Committee for Health Research (Ref. No. 013–2015/NECHR), Government of the Lao PDR and the Oxford Tropical Research Ethics Committee (1015–13). Written informed consent were sought from each participant before each interview.
: Not applicable.
: The authors declare that they have no competing interests.
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