1. Pathology and Cytology Department Centre Hospitalo‐Universitaire de Toulouse Toulouse III Toulouse France
2. Department of Pathology University of Chicago Chicago IL USA
3. Department of Pathology NHS Grampian University of Aberdeen NHS Education for Scotland Edinburgh UK
4. Institute of Pathology and Comprehensive Cancer Center Tübingen University Hospital Tübingen Germany
5. Department of Oncology University of Turin, Italy and Institute of Pathology University of Würzburg Würzburg Germany
6. Department of Histopathology Royal Marsden Hospital London UK