Received: 1 October 2021
Accepted: 10 February 2022
First Online: 3 March 2022
: The ethical approval (Ref: CMC-IRC/077/078-019) for this retrospective study was obtained from Chitwan Medical College, Institutional Review Committee (CMC-IRC), Nepal. A written informed consent was taken from each subject before the participation in this study.
: Not applicable.
: No any conflicts of interest.