1. Section of Medical Psychology and Psychotherapy, Department of Psychiatry Erasmus University Medical Center Rotterdam The Netherlands
2. Department of Surgery, Erasmus Cancer Institute Erasmus University Medical Center Rotterdam The Netherlands
3. Department of Surgery Reinier de Graaf Hospital Delft The Netherlands
4. Department of Surgery Catharina Hospital Eindhoven The Netherlands
5. Department of Surgery Radboud University Medical Center Nijmegen The Netherlands
6. Department of Primary and Community Care Radboud University Medical Center Nijmegen The Netherlands