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Article History

Received: 9 August 2018

Revised: 5 October 2019

Accepted: 18 March 2020

First Online: 7 April 2020

COMPLIANCE WITH ETHICAL STANDARDS

: <i>Conflict of interest</i>. The authors declare that they have no conflict of interest.<i>Statement of compliance with standards of research involving humans as subjects.</i> The study was approved by the ethical committee of Gauhati University (GUEC-01/2015) and was in compliance with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The data were analyzed anonymously. A written informed consent form was duly signed and collected from all the participants enrolled in this study

: AB and PS contributed equally to this work. SB provided infrastructural and financial support to carry out the experiments and designed the study. AB and PS performed overall literature search, experimental work and compilation of data. MB provided samples and patients data recordings. AB drafted the manuscript. DB did data analysis and interpreted the results. SB, DB, RV, VM critically reviewed the manuscript. All authors read and approved the final manuscript.