Received: 3 June 2019
Accepted: 5 July 2019
First Online: 11 July 2019
Ethics approval and consent to participate
: The study was exempted from ethical review by the University of Michigan Institutional Review Board (Reference: HUM00088654).
: Written (for participants who could read and write) or verbal informed consent was obtained from the participants for publication of their data. The consent forms are held by the Institute for Social and Environmental Research, Nepal.
: The authors declare that they have no competing interests.