Kayali, Stefano, Federica Gaiani, Marco Manfredi, Roberta Minelli, Giorgio Nervi, Antonio Nouvenne, Gioacchino Leandro, Francesco Di Mario, and Gian Luigi de’ Angelis. “Inverse Association Between Helicobacter Pylori and Inflammatory Bowel Disease: Myth or Fact?”. Acta Bio Medica Atenei Parmensis 89, no. 9-S (December 17, 2018): 81-86. Accessed October 29, 2020. https://www.mattioli1885journals.com/index.php/actabiomedica/article/view/7878.