Funding for this research was provided by:
National Institutes of Health (DP1ES025459)
Received: 24 August 2018
Accepted: 19 February 2019
First Online: 28 February 2019
Ethics approval and consent to participate
: Ethical approval has been obtained from Nepal Health Research Council, Kathmandu University of Medical Science, and Harvard TH Chan School of Public Health. Written consent were received from the study participants.
: Not Applicable
: The authors declare that they have no competing interests.
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