Leiden University - Department of Orthopaedic Surgery, IRCCS Istituto Ortopedico Rizzoli di Bologna - Musculoskeletal Oncology Department, Radboud University Nijmegen - Radboud University Medical Center, Leiden University - Department of Medical Statistics and Bioinformatics, Fondazione IRCCS Istituto Nazionale dei Tumori, IRCCS Istituto Ortopedico Rizzoli di Bologna - Musculoskeletal Oncology Department, University of Amsterdam - Department of Orthopaedic Surgery, University of Groningen - Department of Orthopaedics, Royal National Orthopedic Hospital, London, Leiden University - Department of Medical Oncology, Medical University of Graz, Medical University of Innsbruck - Department of Orthopedic Surgery, Kanazawa University - Graduate School of Medical Sciences, Harvard University - Massachusetts General Hospital, Peking University - Department of Orthopedic Oncology, University of Toronto - Musculoskeletal Oncology Unit, Independent and Leiden University - Department of Orthopedics

Fondazione IRCCS Istituto Nazionale dei Tumori - Sarcoma Service, Fondazione IRCCS Istituto Nazionale dei Tumori, European Organisation for Research and Treatment of Cancer (EORTC), European Organisation for Research and Treatment of Cancer (EORTC), European Organisation for Research and Treatment of Cancer (EORTC), Heidelberg University, Leiden University - Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, NHS Foundation Trust - Royal Marsden Hospital, University of Padua, Fondazione IRCCS Istituto Nazionale dei Tumori, Fondazione IRCCS Istituto Nazionale dei Tumori, University of Sheffield and Fondazione IRCCS Istituto Nazionale dei Tumori - Sarcoma Service