American Journal of Gastroenterology American Journal of Gastroenterology, Nature Publishing Group: Open Access Hybrid Model Option A, 2018, 113 (2), pp.265-272. ⟨10.1038/ajg.2017.228⟩ The American Journal of Gastroenterology The American Journal of Gastroenterology, 2018, 113 (2), pp.265-272. ⟨10.1038/ajg.2017.228⟩