1. Medical Division, Copenhagen University Hospital Hvidovre; Gastrounit; Kettegaards Alle 30 Hvidovre Denmark
2. Copenhagen University Hospital Hvidovre; Gastrounit, Medical Division; Hvidovre Denmark
3. Odense University Hospital; Department of Gastroenterology and Hepatology; Sdr. Boulevard 29, indgang 126 Odense Denmark 5000
4. Odense University Hospital; Department of Gastroenterology S; Sdr. Boulevard 29, indgang 126 Odense C Denmark 5000