1. Department of Surgery; Catharina Hospital; Eindhoven The Netherlands
2. Department of Research; Netherlands Comprehensive Cancer Organisation; Utrecht The Netherlands
3. Department of Epidemiology; Maastricht University; Maastricht The Netherlands
4. Department of Surgery; Máxima Medical Centre; Veldhoven The Netherlands
5. Department of Medical Oncology; Catharina Hospital; Eindhoven The Netherlands
6. Department of Radiotherapy; Catharina Hospital; Eindhoven The Netherlands