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Khan A, Sami K, Malik A, Mujtaba Bhinder M, Naseem K, Gupta K, Siddiqui A, Mansoor E, Singh S, Mumtaz K.Khan A, et al.Eur J Gastroenterol Hepatol. 2021 Dec 1;33(1S Suppl 1):e719-e726. doi: 10.1097/MEG.0000000000002230.Eur J Gastroenterol Hepatol. 2021.PMID: 34138764Free PMC article.