1. Institute of Pathology; Faculty of Medicine; University of Ljubljana; Ljubljana Slovenia
2. Institute for Biostatistics and Medical Informatics; Faculty of Medicine; University of Ljubljana; Ljubljana Slovenia
3. Department of Pathology and Immunology; School of Medicine; Washington University; St Louis MO USA
4. Department of Molecular and Clinical Cancer Medicine; University of Liverpool; Liverpool UK
5. Department of Pathology; Yale University School of Medicine; New Haven CT USA
6. Department of Histopathology; Charing Cross Hospital; London UK
7. Department of Pathology; Beth Israel Medical Center; New York NY USA
8. Department of Pathology; Hospital Clinic; University of Barcelona; Barcelona Spain