1. Department of Medical Oncology, Leiden University Medical Center, Leiden, the Netherlands
2. Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
3. Department of Surgical Oncology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
4. Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
5. Department of Clinical Oncology, The Royal Marsden Hospital and The Institute of Cancer Research, London, United Kingdom
6. Department of Surgery, The Royal Marsden Hospital and The Institute of Cancer Research, London, United Kingdom
7. Department of Pathology, The Royal Marsden Hospital and The Institute of Cancer Research, London, United Kingdom
8. Department of Radiotherapy, Leiden University Medical Center, Leiden, the Netherlands
9. Department of Medical Statistics and Bioinformatics, Leiden University Medical Center, Leiden, the Netherlands
10. Department of Radiotherapy, The Netherlands Cancer Institute, Amsterdam, The Netherlands