1. Department of Surgical Oncology and Gastrointestinal Surgery Erasmus MC Cancer Institute Rotterdam the Netherlands
2. Erasmus Centre for Healthcare Governance, Erasmus School of Health Policy and Management Erasmus University Rotterdam Rotterdam the Netherlands
3. Department of Internal Medicine Erasmus Medical Centre Rotterdam Rotterdam the Netherlands
4. Department of Internal Medicine Maasstad Hospital Rotterdam Rotterdam the Netherlands
5. Department of Internal Medicine Albert Schweitzer Hospital Dordrecht the Netherlands
6. Department of Internal Medicine Franciscus Gasthuis and Vlietland Rotterdam Rotterdam the Netherlands
7. Department of Surgical Oncology Albert Schweitzer Hospital Dordrecht the Netherlands