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Article History

Received: 8 August 2021

Accepted: 21 October 2021

First Online: 26 October 2021

Declarations

:

: The authors have stated explicitly that there are no conflicts of interest in connection with this article.

: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

: The patient’s legally authorized representative consented (written) to participate in the study and approval was obtained from the ethics committee of Institute of Post-graduate Medical Education and Research, Kolkata, India (Ethics committee reference number-ECR/35/Inst/WB/2013/RR-16).

: I, Dr Souvik Dubey, take full responsibility for the data, the analyses and interpretation, and the conduct of the research. I have full access to all the data and have the right to publish any and all data, separate and apart from the guidance of any sponsor.