Funding for this research was provided by:
National Institute for Health Research (16/137/49, 16/137/49, 16/137/49, 16/137/49)
Received: 29 October 2021
Accepted: 13 June 2022
First Online: 25 June 2022
: This study was approved by Nepal Health Research Council and ratified by the Research Ethics Committee of the Faculty of Health and Applied Sciences at the University of the West of England, Bristol. We confirm that all the methods were carried out in accordance with relevant guidelines and regulations. We confirm that informed consent was obtained from all subjects and/ or their legal guardians.
: Not applicable.
: The authors declare that they have no competing interests.