Funding for this research was provided by:
Medical Research Council (MR/L012251/1)
Received: 25 July 2018
Accepted: 24 April 2019
First Online: 16 May 2019
Ethics approval and consent to participate
: Participants provided consent by written signature or thumbprint. Ethical approval was obtained from ethics committees at the London School of Hygiene & Tropical Medicine and Marie Stopes International and the Cambodia Human Research ethics committee. The trial was registered through ExternalRef removed with the identifier NCT01823861.
: Not applicable.
: The authors declare that they have no competing interests.
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