1. Surgery Department Montpellier Cancer Institute (ICM) University of Montpellier Montpellier France
2. Biometrics Unit Montpellier Cancer Institute (ICM) University of Montpellier Montpellier France
3. Zealand University Hospital Roskilde Denmark
4. St James University Hospital Leeds UK
5. Department of Surgery Lukaskrankenhaus Neuss Neuss Germany
6. Oulu University Hospital Oulu Finland
7. IEO European Institute of Oncology Milan Italy
8. Clinical Research Department Montpellier Cancer Institute (ICM) University of Montpellier Montpellier France
9. Cirugía Colorrectal – Cirugía General y del Aparato Digestivo Hospital Universitario Marqués de Valdecilla Santander Spain