Funding for this research was provided by:
Department for International Development
Received: 31 January 2019
Accepted: 12 August 2019
First Online: 23 August 2019
Ethics approval and consent to participate
: Ethical approval for this study was obtained from the National Ethics Committee (NECHR) for Health Research in Cambodia with reference to No 275. We used verbal consent which was approved by NECHR with each participant prior to starting the interview.
: Not applicable as images, or videos relating to an individual study participant has not been taken and used for this publication.
: The authors declare that they have no competing interests.