Received: 16 September 2017
Accepted: 11 May 2018
First Online: 21 May 2018
Ethics approval and consent to participate
: The study protocol received ethical approval from the Nepal Health Research Council, Kathmandu, Nepal. Written informed consent was obtained from each participant prior to recruitment into the study. Information regarding the purpose, confidentiality, the voluntary nature of the study as well as participants’ right to withdraw from the study at any time was explained before conducting study.
: The authors declare that they have no competing interests.
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