1. Department of Internal Medicine; Rouen University Hospital; Rouen France
2. Department of Gastroenterology; Rouen University Hospital; Rouen France
3. Department of Biostatistics; Rouen University Hospital; Rouen France
4. Department of Internal Medicine; Lille University Hospital; Lille France
5. Department of Gastroenterology; Lille University Hospital; Lille France
6. Department of Internal Medicine; Caen University Hospital; Caen France
7. Department of Gastroenterology; Caen University Hospital; Caen France
8. Department of Internal Medicine; Amiens University Hospital; Amiens France
9. Department of Gastroenterology; Amiens University Hospital; Amiens France
10. Department of Pneumology; Rouen University Hospital; Rouen France