1. Hegnsvej 127 Naerum Denmark DK-2850
2. H:S Hvidovre University Hospital 447; PhaseOneTrials A/S; Kettegårds allé Hvidovre Denmark DK-2650
3. Hôpital Claude Huriez, 2ème etage Est; Service d'Hépatogastroentérologie; Avenue Mivchel Polonovski CHRU Lille France F- 59037
4. Copenhagen Trial Unit, Centre for Clinical Intervention Research, Department 3344, Rigshospitalet, Copenhagen University Hospital; Cochrane Hepato-Biliary Group; Blegdamsvej 9 Copenhagen Denmark DK-2100
5. Groupe Hospitalier Pitie-Salpetriere, Paris, France; Service d'Hepato-Gastroenterologie; 47-83 boulevard de l'Hopital Paris Cedex 13 France 75651