Received: 12 April 2020
Accepted: 13 October 2021
First Online: 29 October 2021
: The researchers were duly concerned about the ethical issues related to the study. Formal ethical clearance was taken from the Ethical Review Committee (ERC) of Dhaka Medical College (DMC). Informed written consent was taken from all of the participants. In case of minors, written consent was sought from the parent or legal guardians of the patients. Confidentiality was maintained properly.
: The authors declare no competing interests.