Received: 9 September 2022
Accepted: 26 December 2022
First Online: 24 January 2023
: This study was conducted with approval of institutional review committee of Institute of Medicine, Tribhuvan University with approval number of 509 (6-11) E2 077/078. Informed written consent to participate in the study was provided by all participants or their parent or legal guardian in the case of children under age of 16.
: Written informed consent for the publication of details and images relating to individual participants was taken from all participants or their parent or legal guardian in the case of children under age of 16 as and when necessary.
: Authors declare that they have no competing interests.