1. Department of Internal Medicine III Medical University of Vienna Vienna Austria
2. Department of Epidemiology Medical University of Vienna Vienna Austria
3. Department of Internal Medicine Brothers of St. John of God Hospital St. Veit an der Glan St. Veit an der Glan Austria
4. Darmpraxis Salzburg Austria
5. Department of Internal Medicine Medical University of Graz Graz Austria
6. Department of Internal Medicine I Wels‐Grieskirchen Hospital Wels Austria
7. Department of Internal Medicine I Medical University of Innsbruck Innsbruck Austria
8. Department of Internal Medicine IV Rudolfstiftung Hospital Vienna Austria
9. Department of Internal Medicine Oberpullendorf Hospital Oberpullendorf Austria
10. Department of Internal Medicine II Universitätsklinikum St. Pölten St. Pölten Austria
11. Department of Internal Medicine V Wels‐Grieskirchen Hospital Grieskirchen Austria
12. Department of Internal Medicine Hall in Tirol Hospital Hall in Tirol Austria
13. Department of Internal Medicine I Wiener Neustadt Hospital Wiener Neustadt Austria
14. Department of Internal Medicine Franziskus Hospital Vienna Austria
15. Department of Internal Medicine Hanusch Hospital Vienna Austria
16. Department of Internal Medicine IV Congregation Hospital Sisters of Charity Linz Austria
17. Department of Internal Medicine Feldkirch Hospital Feldkirch Austria
18. Department of Internal Medicine II Brothers of St. John of God Hospital Graz Graz Austria
19. Department of Internal Medicine Brothers of St. John of God Hospital Salzburg Salzburg Austria