1 University Hospital Aachen, Aachen, Germany|||University Hospital RWTH Aachen, Aachen, Germany|||Junge Gastroenterologie (JuGa) - German Young Gastroenterology Study Group, Berlin, Germany

2 St. Josef-Hospital, a hospital of the Ruhr-University-Bochum, Essen, Germany|||Junge Gastroenterologie (JuGa) - German Young Gastroenterology Study Group, Berlin, Germany

3 University Hospital Coventry and Warwickshire, Coventry, United Kingdom|||Junge Gastroenterologie (JuGa) - German Young Gastroenterology Study Group, Berlin, Germany

4 Heidelberg University Hospital, Heidelberg, Germany|||Junge Gastroenterologie (JuGa) - German Young Gastroenterology Study Group, Berlin, Germany

5 University College London, London, United Kingdom

6 Internal Security Forces Hospital La Marsa, Tunis, Tunisia

7 East Tallinn Central Hospital, Tallinn, Estonia

8 Vilnius university Santaros Klinikos, Vilnius, Lithuania|||Vilnius university hospital Santara Clinics, Vilnius, Lithuania

9 University Hospital Centre Zagreb, Zagreb, Croatia

10 Heidelberg University Hospital, Department of Medicine IV, Heidelberg, Germany, Heidelberg, Germany|||Karolinska Institute, Stockholm, Sweden|||Junge Gastroenterologie (JuGa) - German Young Gastroenterology Study Group, Berlin, Germany

11 Jessenius Faculty of Medicine, University Hospital in Martin, Martin, Slovakia

12 Royal Liverpool University Hospital, UK, Liverpool, United Kingdom|||National Liver Institute, Menoufia University, Menoufia, Egypt

13 St Vincent's University Hospital, Dublin 14, Ireland

14 Medical Faculty and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany|||Junge Gastroenterologie (JuGa) - German Young Gastroenterology Study Group, Berlin, Germany

15 Saint Marina University Hospital, Pleven, Bulgaria

16 Hvidovre University Hospital, Soeborg, Denmark

17 University Clinical Center of Kosova, Prishtine, Kosovo

18 UKC Tuzla, Tuzla, Bosnia and Herzegovina

19 Universitätsspital Basel, Basel, Switzerland

20 Erasmus University Medical Center, Rotterdam, Netherlands

21 Institute for Clinical and Experimental Medicine, Prague, Czechia|||Second Faculty of Medicine, Charles University, Prague, Czechia

22 2nd Department of Internal Medicine – Gastroenterology and Geriatrics, University Hospital Olomouc, Faculty of Medicine, Palacky University Olomouc, Olomouc, Czechia|||University Hospital Olomouc, Faculty of Medicine and Dentistry, Olomouc, Czechia|||Masa

23 Medical University of Vienna, Vienna, Austria

24 Hospital Universitario Marqués de Valdecilla, Santander, Spain

25 Government Institution “L.T.Malaya Therapy National Institute of the National Academy of Medical Sciences of Ukraine”, Kharkov, Ukraine

26 tangier faculty of medicine / tangier mohamed VI university hospital, Tangier, Morocco

27 Università degli Studi della Campania "Luigi Vanvitelli", Aversa (CE), Italy|||Vall d'Hebron University Hospital, Universitat Autonoma de Barcelona UAB, Barcelona, Spain

28 Mater Dei Hospital, Mosta, Malta

29 University Hospital Center 'Mother Teresa', Tirana, Albania

30 AZERBAIJAN MEDICAL UNIVERSITY, Baku, Azerbaijan

31 Medical University of Lodz, Lodz, Poland

32 417 NIMTS, Cholargos, Greece

33 Hacettepe University, Ankara, Turkey

34 Tondela-Viseu Hospital Center, Viseu, Portugal

35 Clinical center of Serbia, Belgrade, Serbia

36 Diagnostic center Rogaska, Rogaska Slatina, Slovenia

37 Colentina Clinical Hospital Dept. of Gastroenterology, Bucharest, Romania

38 University Hospitals Leuven, Leuven, Belgium

39 Gastroenterology/Multivisceral Transplant Unit, Padua, Italy

40 Universitätsklinikum Regensburg, Regensburg, Germany|||Junge Gastroenterologie (JuGa) - German Young Gastroenterology Study Group, Berlin, Germany

41 Charité Universitätsmedizin Berlin, Berlin, Germany|||Berlin Institute of Health at Charité, Berlin, Germany

1 Unidade Local de Saúde de Lisboa Ocidental, Lisboa, Portugal

2 Unidade Local de Saúde de Lisboa Ocidental, Lisboa, Portugal|||Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal

3 ManopH, Porto, Portugal

4 Centro Hospitalar Universitário de Santo António, Porto, Portugal

5 Unidade Local de Saúde de Coimbra, Coimbra, Portugal

6 Unidade Local de Saúde Gaia e Espinho, Vila Nova de Gaia, Portugal

7 Hospital Beatriz Ângelo, Loures, Portugal

8 Unidade Local de Saúde de Leiria, Leiria, Portugal

9 Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal|||Unidade Local de Saúde de Santa Maria, Lisboa, Portugal

1 San Raffaele Scientific Institute IRCCS, Milano, Italy

2 Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy

1 Massachusetts General Hospital, Boston, Israel

2 Massachusetts General Hospital, Boston, United States