1. Laboratory of Molecular Oncology Department of Oncology University of Helsinki Helsinki Finland
2. Department of Pathology Helsinki University Hospital and University of Helsinki Helsinki Finland
3. MediSapiens Ltd Helsinki Finland
4. Sarkomzentrum Berlin‐Brandenburg, HELIOS Klinikum Berlin‐Buch Berlin Germany
5. Department of Oncology Skane University Hospital and Lund University Lund Sweden
6. Department of Oncology Oslo University HospitalNorwegian Radium Hospital Oslo Norway
7. Gerhard‐Domagk‐Institute of Pathology University Hospital Münster Münster Germany
8. Department of Surgery Sahlgrenska University Hospital Gothenburg Sweden
9. Rare Cancers Research Group Department of Pathology University of Helsinki Helsinki Finland
10. Comprehensive Cancer Center Helsinki University Hospital Helsinki Finland