1. Department of Pathology Azienda Ospedale‐Università Padova Padua Italy
2. Department of Medicine University of Padua School of Medicine Padua Italy
3. International Collaboration on Cancer Reporting Sydney NSW Australia
4. Institute of Pathology Friedrich‐Alexander‐Universität Erlangen‐Nürnberg Erlangen Bayern Germany
5. Department of Pathology Leiden University Medical Center Leiden the Netherlands
6. Department of Pathology & Laboratory Medicine, Mount Sinai Hospital and Department of Pathobiology & Laboratory Medicine University of Toronto Toronto ON Canada
7. Department of Pathology, Brigham and Women's Hospital Harvard Medical School Boston MA USA
8. Department of Pathology University of California Los Angeles CA USA
9. Department of Surgery Fondazione IRCCS Istituto Nazionale dei Tumori Milan Italy
10. Department of Pathology and Laboratory Medicine Memorial Sloan Kettering Cancer Center New York NY USA
11. Department of Anatomic Pathology Canterbury Health Laboratories Christchurch New Zealand
12. Department of Pathology and Biomedical Science University of Otago Medical School Christchurch New Zealand
13. Diagnostic and Research Institute of Pathology, Comprehensive Cancer Centre Graz Medical University of Graz Graz Austria
14. The Royal Marsden NHS Foundation Trust London UK
15. The Institute of Cancer Research London UK
16. Center for Sarcoma and Bone Oncology Dana‐Farber Cancer Institute Boston MA USA
17. Harvard Medical School Boston MA USA
18. Department of Pathology Fudan University Shanghai Cancer Center Shanghai China
19. Department of Oncology, Shanghai Medical College Fudan University Shanghai China
20. Department of Diagnostic Pathology National Cancer Center Hospital Tokyo Japan
21. Rare Cancer Center National Cancer Center Hospital Tokyo Japan