Bram Verstockt1, Nélia Abreu2, Joana Torres3. 1. University Hospitals Leuven Department of Gastroenterology and Hepatology, KU Leuven, Leuven, Belgium; KU Leuven Department of Chronic Diseases, Metabolism and Ageing, Translational Research Center for Gastrointestinal Disorders (TARGID), Leuven, Belgium. 2. Gastroenterology Division, Hospital Beatriz Ângelo, Loures, Portugal. 3. Gastroenterology Division, Hospital Beatriz Ângelo, Loures, Portugal; Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal. Electronic address: joanatorres00@gmail.com.