Farrag Karima, Shastri Yogesh M, Beilenhoff Ulrike, Aksan Ayşegül, Stein Jürgen
Department of Gastroenterology and Clinical Nutrition, DGD Clinics Sachsenhausen, Frankfurt am Main, 60594 Frankfurt am Main, Germany.
Interdisciplinary Crohn Colitis Centre Rhein-Main, 60594 Frankfurt am Main, Germany.
BMJ. 2019 Jan 22;364:k5311. doi: 10.1136/bmj.k5311.