1. Department of Clinical Sciences; Division of Oncology and Pathology; Faculty of Medicine; Lund University; Lund Sweden
2. Previous address: Department of Pathobiology and Laboratory Medicine; University Health Network; Toronto ON Canada
3. Institute of Pathology and Neuropathology and Comprehensive Cancer Center; University Hospital Tübingen; Tübingen Germany
4. Institute of Pathology; Staedtisches Klinikum; München Germany
5. Department of Pathology and Laboratory Medicine; Weill Cornell Medical College; New York NY USA
6. GATA Patoloji AD; Etlik Ankara Turkey
7. Department of Histopathology; Guy's and St Thomas' Hospitals; London UK