1. a Digestive Oncology Unit, University Hospital Gasthuisberg, Leuven, Belgium
2. b Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts, USA
3. c Department of Pathology, Lausanne University, Lausanne, Switzerland
4. d Keck School of Medicine, University of Southern California, Los Angeles, California, USA
5. e Medical Oncology, Dana Farber Cancer Institute, Boston, Massachusetts, USA
6. f Department of Urology, University of California, San Francisco, CA, USA
7. g Department of Surgery, University of California, San Francisco, CA, USA
8. h Department of Pharmacology & Toxicology, University of Utah, Salt Lake City, Utah, USA
9. i Department of Pathology, Virginia Mason Medical Center, Seattle, Washington, USA
10. j Almac Diagnostics, Cambridge, Massachusetts, USA
11. k School of Molecular Medical Sciences, University of Nottingham, Nottingham, UK
12. l Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
13. m Cancer Research UK, London Research Institute, Royal Marsden Hospital, London, UK
14. n Molecular and Population Genetics Laboratory, London Research Institute, Cancer Research UK, London, UK
15. o Swiss Institute of Bioinformatics, Lausanne, Switzerland
16. p Department of Surgical and Morphological Science, University of Genova, Genova, Italy
17. q Oncosurgery, University Hospital of Geneva, Geneva, Switzerland