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Hussein Hassan Okasha, Abeer Awad, Ahmed El-meligui, Reem Ezzat, Ashraf Aboubakr, Sameh AbouElenin, Ramy El-Husseiny, Ahmed Alzamzamy 
World J Gastroenterol 27(21):2664-2680. Published online Jun 7, 2021. doi: 10.3748/wjg.v27.i21.2664
Review
Michela Visani, Giorgia Acquaviva, Antonio De Leo, Viviana Sanza, Lidia Merlo, Thais Maloberti, Alba A Brandes, Enrico Franceschi, Monica Di Battista, Michele Masetti, Elio Jovine, Sirio Fiorino, Annalisa Pession, Giovanni Tallini, Dario de Biase 
World J Gastroenterol 27(21):2710-2726. Published online Jun 7, 2021. doi: 10.3748/wjg.v27.i21.2710
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