An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Vithayathil M, Modolell I, Ortiz-Fernandez-Sordo J, Pappas A, Januszewicz W, O'Donovan M, Bianchi M, White JR, Kaye P, Ragunath K, di Pietro M.Vithayathil M, et al. Among authors: ragunath k.Endoscopy. 2023 Jun;55(6):491-498. doi: 10.1055/a-2015-8883. Epub 2023 Jan 19.Endoscopy. 2023.PMID: 36657467Free PMC article.Clinical Trial.