1. Julius Center for Health Sciences and Primary Care Internal Medicine and Oncology Surgery Gynaecologic Oncology Gastroenterology Universitair Medisch Centrum Utrecht Utrecht The Netherlands
2. Advocate Quality of Care Dutch Federation of Cancer Patient Organizations Utrecht The Netherlands
3. Surgery Gastroenterology Dermatology Pulmonology Diakonessenhuis Utrecht Utrecht The Netherlands
4. Surgery Dermatology Lung Diseases and Treatment St. Antonius Hospital Nieuwegein The Netherlands
5. Surgery Alexander Monro Clinics Bilthoven The Netherlands