1. Gastroenterology and Digestive Oncology Unit; Cochin Teaching Hospital; Paris France
2. Digestive Oncology Unit; La Timone Hospital; Marseille France
3. Faculty of Medicine-Timone; Aix-Marseille University; Marseille France
4. Public Health Department; Curie Institute; Paris France
5. Gastroenterology Unit; Saint Antoine Hospital; Paris France
6. Gastroenterology Unit; Poitiers Teaching Hospital; Poitiers France
7. Laboratory of Inflammation, Epithelial Tissues, and Cytokines (EA 4331); Poitiers University; Poitiers France
8. Gastroenterology Unit; Tours Teaching Hospital; Tours France
9. Faculty of Medicine; Francois Rabelais University; Tours France
10. Cochin-Port Royal Faculty of Medicine; Paris Descartes University; Paris France
11. Gastroenterology Unit; La Pitié Salpêtrière Hospital; Paris France
12. Faculty of Medicine; Pierre and Marie Curie University; Paris France
13. Gastroenterology and Hepatology Unit, Saint Etienne Teaching Hospital; North Hospital; Saint-Priest-en-Jarez France
14. Gastroenterology and Digestive Unit; Georges Pompidou European Hospital; Paris France
15. Paris Descartes University-Sorbonne Paris Cité; Paris France
16. Gastroenterology Unit; Reims Teaching Hospital; Reims France
17. Gastroenterology Unit; Jean Mermoz Hospital; Lyon France
18. Gastroenterology Unit; Kremlin-Bicêtre Hospital; Le Kremlin-Bicêtre France
19. Gastroenterology Unit; Amboise Paré Hospital; Boulogne-Billancourt France
20. Gastroenterology Unit; Avicenne Hospital; Bobigny France
21. Gastroenterology Unit; Antoine Béclère Hospital; Clamart France
22. Department of Medical Oncology; Curie Institute Hospital; Paris France
23. Department of Medical Oncology, René Huguenin Hospital; Curie Institute; Saint-Cloud France
24. Faculty of Health Sciences; Versailles Saint-Quentin-en-Yvelines University; Montigny-Le-Bretonneux France