1. Department of Surgical Oncology and Gastrointestinal Surgery Erasmus MC Cancer Institute Rotterdam The Netherlands
2. Department of Internal Medicine Erasmus Medical Centre Rotterdam Rotterdam The Netherlands
3. Department of Internal Medicine Maasstad Hospital Rotterdam Rotterdam The Netherlands
4. Department of Surgical Oncology Albert Schweitzer Hospital Dordrecht The Netherlands
5. Department of Surgery Franciscus Gasthuis & Vlietland Rotterdam Rotterdam The Netherlands
6. Department of Nuclear Medicine Reinier de Graaf Hospital Delft Delft The Netherlands