1. Institute of Social and Preventive Medicine; University of Bern; Bern Switzerland
2. Northwestern University Feinberg School of Medicine; Chicago IL USA
3. University of North Carolina School of Medicine; Chapel Hill NC USA
4. Tufts Medical Center; Boston MA USA
5. Viollier AG; Basel Switzerland
6. Centre Hospitalier Universitaire Vaudois/CHUV; Lausanne Switzerland
7. Mayo Clinic; Rochester MN USA
8. University of Colorado School of Medicine; Digestive Health Institute; Children's Hospital Colorado; Aurora CO USA
9. Indiana University School of Medicine; Indianapolis IN USA
10. University of California, San Diego; San Diego CA USA
11. Icahn School of Medicine at Mount Sinai; New York NY USA
12. University Hospital Basel; Basel Switzerland
13. Swiss EoE Research Group; Praxis Römerhof Olten Switzerland