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Article History

Received: 29 February 2020

Accepted: 21 May 2020

First Online: 4 November 2020

Compliance with ethical standards

:

: PO, GC, IF, DP, IZ, JL, and RM declare that they have no conflict of interest.

: The study was performed conforming to the Helsinki declaration of 1975, as revised in 2000 and 2008 concerning human and animal rights, and the authors followed the policy concerning informed consent as shown on Springer.com.

: The study was carried out on humans; it is a retrospective analysis of our endoscopic database, so as a consequence, no experimental intervention was undertaken on those subjects included in our study.

: There are no data or images included in this study that could facilitate the identification of a single patient included for analysis. We only used some clinical and epidemiological data from which is impossible to infer the identity of the subjects included in the study—hence, it is completely anonymous.

: Moreover, we declare that our study complies with the bioethical regulations expressed in the Declaration of Helsinki; this study was also evaluated and approved by our local ethics committee.

: Since it was a retrospective observational study and no crucial data on subject’s identity was used, no informed consent was needed.

: The authors are solely responsible for the data and the contents of the paper. In no way, the Honorary Editor-in-Chief, Editorial Board Members, the Indian Society of Gastroenterology, or the printer/publishers are responsible for the results/findings and content of this article.