Abhijit Sarkar,
Biswajit Sinha,
Article History
Received: 19 September 2018
Revised: 11 November 2018
Accepted: 15 January 2019
First Online: 24 September 2019
COMPLIANCE WITH ETHICAL STANDARDS
: The authors declare that.
: (1) The manuscript has not been submitted to more than one journal for publication consideration.
: (2) The manuscript has neither been published previously nor has been split up into several parts to increase the quantity of submissions and submitted to various journals or to one journal over time.
: (3) No data have been fabricated or manipulated (including images) to support our conclusions.
: (4) No data, text, or theories by others are presented as if they were the author’s own, if such items are used they have been well referred/acknowledged.
: (5) Consent to submit has been received explicitly from all co-authors and the responsible authorities at the institute/organization.
: (6) Authors whose names appear on the submission have contributed sufficiently to the scientific work and therefore share collective responsibility and accountability for the results.
: The authors declare that they have no conflict of interest to the best of their knowledge.