Received: 4 June 2019
Accepted: 6 May 2020
First Online: 19 May 2020
Ethics approval and consent to participate
: The ethical approval had been obtained from Gandaki Medical College-Institutional Review Committee. All participants were 18 years and older who can give consent according to law of Nepal. Written informed consent was taken from all the subjects. In case of participants with cognitive disabilities, written informed consent was obtained from parent/legal guardian.
: Not applicable.
: The authors declare that they have no competing interests.