Funding for this research was provided by:
World Health Organization (NA)
Received: 25 April 2019
Accepted: 13 September 2019
First Online: 15 October 2019
Ethics approval and consent to participate
: Ethical approval for the trial was granted both by the WHO Ethics Review Committee (A65877, Geneva, Switzerland) and country-specific review bodies including the Nepal Health Research Council (Kathmandu, Nepal), the Ethics Review Board of the Ministry of Health in Vietnam (Hanoi, Vietnam), and the Human Research Ethics Committee of the University of Witwatersrand (Johannesburg, South Africa), as well as the Allendale Investigational Review Board (Old Lyme, Connecticut, USA). All participants gave written consent to participate in the in-depth interview and to have the interview recorded.
: Not applicable.
: The authors declare that they have no competing interests.