1. Department of Oncology University of Turin Turin Italy
2. Institute of Pathology University of Würzburg Würzburg Germany
3. Department of Pathology NHS Grampian University of Aberdeen NHS Education for Scotland Aberdeen Scotland
4. Department of Histopathology Royal Marsden Hospital London UK
5. Pathology and Cytology Department Centre Hospitalo‐Universitaire de Toulouse Institut Universitaire du Cancer de Toulouse‐Oncopole Centre de Recherche en Cancerologie de Toulouse Inserm UMR1037 laboratoire d’excellence TOUCAN Paul Sabatier University Toulouse III Toulouse France
6. Department of Pathology University of Chicago Chicago IL USA
7. Institute of Pathology and Comprehensive Cancer Centre Tübingen University Hospital Tübingen Germany