1. Department of Surgery Diakonessenhuis Utrecht UtrechtThe Netherlands
2. Department of Pathology University Medical Centre UtrechtUtrecht University UtrechtThe Netherlands
3. Department of Surgery St Antonius Hospital NieuwegeinThe Netherlands
4. Department of Pathology Rijnstate Hospital ArnhemThe Netherlands
5. Department of Pathology St Antonius Hospital Nieuwegein The Netherlands