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Article History

Received: 5 January 2017

Accepted: 29 January 2018

First Online: 2 February 2018

Ethics approval and consent to participate

: The Ethical approval for this research was obtained from the Institutional Review Committee of B P Koirala Institute of Health Sciences (Ref: IRC/634/015), Dharan, Nepal. Written informed consent was obtained from each participant before the study. For minors, an assent was taken from the participants along with the consent of a parent/guardian to participate in the study.

: Not applicable.

: The authors declare that they have no competing interests.

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