1. Department of Internal Medicine, Medical Oncology, Catharina Hospital, Eindhoven, The Netherlands;
2. The Netherlands Cancer Registry, Comprehensive Cancer Organisation the Netherlands, Utrecht, The Netherlands;
3. Department of Internal Medicine, Medical Oncology, Amphia Hospital, Breda, The Netherlands;
4. Department of Surgery, Catharina Hospital, Eindhoven, The Netherlands;
5. Department of Public Health, Erasmus MC University Medical Centre, Rotterdam, The Netherlands