1. Institute of Pathology, Medical University of Graz, Graz, Austria
2. Department of Surgery, Division of General Surgery, Medical University of Graz, Graz, Austria
3. Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria
4. Research Unit for Biomedical Engineering and Computing, Medical University of Graz, Graz, Austria
5. Institute of Pathology, Klinikum Bayreuth, Bayreuth, Germany