Received: 13 November 2017
Accepted: 3 August 2018
First Online: 20 August 2018
Ethics approval and consent to participate
: This study has been approved and obtained the ethical clearance from Institutional Review Committee (IRC, BPKIHS). The ethical clearance number for the study is IRC/636/015.All the study participants were enrolled only after obtaining the written informed consent.
: Not Applicable.
: The authors declare that they have no competing interests for the publication of the study.
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