Competing interests

PP, ZN, MR, KP, RG, MT and DNR declare no competing interests.

Informed consent

Informed consent was obtained from all individual participants included in the study.

Ethical approval

The study was approved by the institutional review board. Written informed consent was taken from each patient and the study conforms to the 1975 Declaration of Helsinki ethical guidelines.

Disclaimer

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