Funding for this research was provided by:
Nepal Health Research Council (Pro-Grant-2018)
Received: 19 February 2020
Accepted: 18 May 2020
First Online: 26 May 2020
Ethics approval and consent to participate
: The study was approved by the Institutional Review Board of Nepal Health Research Council, Government of Nepal, Ministry of Health, Kathmandu. After detailed information, all study participants gave their written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.