1. Department of Pathology, VU University Medical Center, Amsterdam, The Netherlands
2. Department of Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands
3. Department of Epidemiology and Biostatistics, VU University Medical Center, Amsterdam, The Netherlands
4. Department of Mathematics, VU University, Amsterdam, The Netherlands
5. Department of Surgery, VU University, Amsterdam, The Netherlands
6. Department of Pathology, Spaarne Gasthuis, Haarlem, The Netherlands