Affiliation: | 1. Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland;3. Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland;4. Division of Gastroenterology and Hepatology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland;6. Department of Dermatology, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland;5. Institute of Pharmacology, University of Bern, Bern, Switzerland;7. Swiss EoE Clinic, Olten, Switzerland |