1. Royal Free Hospital and the UCL Institute of Liver and Digestive Health; Sheila Sherlock Liver Centre; London UK
2. Royal Free Campus, UCL Medical School; Department of Surgery; Pond Street London UK NW3 2QG
3. Odense University Hospital; Department of Gastroenterology and Hepatology; Sdr. Boulevard 29, Entrance 126 Odense Denmark 5000
4. Copenhagen University Hospital Hvidovre; Gastrounit, Medical Division; Kettegaards Alle Hvidovre Denmark 2650
5. University of Modena and Reggio Emilia; Cochrane Italy, Department of Diagnostic, Clinical and Public Health Medicine; Via del Pozzo 71 Modena Italy 41124
6. Rigshospitalet; Department of Hepatology; Blegdamsvej 9 København Ø Denmark 2100
7. Odense University Hospital; Department of Gastroenterology and Hepatology; Sdr. Boulevard 29, indgang 126 Odense C Denmark 5000