1. Department of Surgical Oncology, Institut Régional du Cancer de Montpellier—Val d’Aurelle, Montpellier, France
2. Department of Surgical Oncology, Centre Léon Berard, Lyon, France
3. Biometrics Unit, Montpellier Cancer Institute, Montpellier, France
4. Department of Surgical Oncology, Institut Paoli Calmettes, Marseille, France
5. Colorectal Department, Centre Hospitalier Universitaire Bordeaux, Bordeaux, France
6. Department of Surgical Oncology, Centre Oscar Lambret, Lille, France
7. Department of Radiation Oncology, Institut Sainte Catherine, Avignon, France
8. Department of Surgical Oncology, Gustave Roussy (Hôpital Lariboisière Assistance Publique–Hôpitaux de Paris), Paris, France
9. Colorectal Department, Centre Hospitalier Universitaire Grenoble, Grenoble, France
10. Department of Surgical Oncology, Centre René Gauducheau, Nantes, France
11. Colorectal Department, Centre Hospitalier Universitaire Clermont-Ferrand, Clermont-Ferrand, France
12. Colorectal Department, Centre Hospitalier Universitaire Montpellier, Montpellier, France
13. Colorectal Department, Centre Hospitalier Universitaire Nancy, Nancy, France
14. Department of Radiotherapy, Centre Hospitalier Universitaire Grenoble, Grenoble, France
15. Department of Radiotherapy, Institut Régional du Cancer de Montpellier—Val d’Aurelle, Montpellier, France