1. Department of Surgery, Amsterdam University Medical Centres, location VUmc, Cancer Center Amsterdam , Amsterdam, the Netherlands
2. Department of Surgery, University Medical Centre Groningen, University of Groningen , Groningen, the Netherlands
3. Department of Endocrinology, Amsterdam University Medical Centers, location VUmc, Cancer Center Amsterdam , Amsterdam, the Netherlands
4. Department of Endocrinology, University Medical Centre Groningen, University of Groningen , Groningen, the Netherlands
5. Department of Surgery, Amsterdam University Medical Centers, location AMC, Cancer Center Amsterdam , Amsterdam, the Netherlands