1. Integrated Cancer Center Ghent, Department of Medical Oncology, AZ Maria Middelares, 9000 Ghent, Belgium
2. The Center for Oncological Research, University of Antwerp, 2650 Edegem, Belgium
3. Integrated Cancer Center Ghent, Department of Radiology, AZ Maria Middelares, 9000 Ghent, Belgium
4. Medical Oncology Department, CHU Insular-Materno Infantil, 35010 Las Palmas, Spain
5. Barts Cancer Institute, Queen Mary University of London, London EC1M 6BQ, UK