Martín-Broto, Javier, Hindi, Nadia, Aguiar Júnior, Samuel, Badilla-González, Ronald, Castro-Oliden, Victor, Chacón, Matias, Correa-Generoso, Raquel, de Álava, Enrique, Donati, Davide María, Eriksson, Mikael, Falla-Jimenez, Martin, German, Gisela, Gobo Silva, Maria Leticia, Gouin, Francois, Gronchi, Alessandro, Haro-Varas, Juan, Jiménez-Brenes, Natalia, Lopes de Mello, Celso Abdon, Kasper, Bernd, Maki, Robert, Martínez-Delgado, Paula, Martínez-Said, Hector, Martinez-Tlahuel, Jorge Luis, Morales-Pérez, Jose Manuel, Muñoz-Casares, Francisco Cristobal, Nakagawa, Suely A., Ortiz-Cruz, Eduardo Jose, Palmerini, Emanuela, Patel, Shreyaskumar, Moura, David S., Stacchiotti, Silvia, Sunyach, Marie Pierre, Valverde, Claudia M., Waisberg, Federico, Blay, Jean-Yves, Universitat Autònoma de Barcelona, European Commission, Martin‐Broto, Javier, [Martin-Broto,J, Hindi,N, Martínez-Delgado,P, Moura,DS] Group of Advanced Therapies and Biomarkers in Sarcoma, Institute of Biomedicine of Seville (IBIS, HUVR, CSIC, Universidad de Sevilla), Sevilla, Spain. [Martin-Broto,J, Hindi,N] Department of Medical Oncology, University Hospital Virgen del Rocio, Seville, Spain. [Aguiar Jr,S] Department of Pelvic Surgery, A.C. Camargo Cancer Center, São Paulo, Brazil. [Badilla-González,R] Department of medical oncology, Rafael Ángel Calderón Guardia Hospital, San José, Costa Rica. [Castro-Oliden,V, Haro-Varas,JC] Department of Medical Oncology, Instituto Nacional de Enfermedades Neoplásicas, Lima, Peru. [Chacón,M, Waisberg,F] Department of Medical Oncology, Alexander Fleming Cancer Institute, Buenos Aires, Argentina. [Correa-Generoso,R] 7 Radiotherapy Department, Virgen de la Victoria University Hospital, Málaga, Spain. [de Álava,E] Pathology Department, University Hospital Virgen del Rocío, Seville, Spain. [de Álava,E] CIBERONC, Madrid, Spain. [de Álava,E] Department of Normal and Pathological Cytology and Histology, School of Medicine, University of Seville, Seville, Spain. [Donati,DM] Unit of Orthopedic Pathology and Osteoarticular Tissue Regeneration, Rizzoli Orthopedic Institute, Bologna, Italy. [Eriksson,E] Department of Medical Oncology, Skane University Hospital-Lund, Lund, Sweden. [Falla-Jimenez,M]Department of Breast and Soft Tissues Surgery, Instituto Nacional de Enfermedades Neoplásicas, Lima, Peru. [German,G] Department of Medical Oncology, Hospital Oncológico Provincial, Córdoba, Argentina. [Gobo Silva,ML] Department of Radiation Therapy, A.C. Camargo Cancer Center, São Paulo, Brazil. [Gouin,F] Department of Orthopedic Surgery, Centre León Bérard, Lyon, France. [Gronchi,A] Department of Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori and University of Milan, Milan, Italy. [Jiménez-Brenes,N] Department of Medical Oncology, San Vicente de Paúl Hospital, Heredia, Costa Rica. [Kasper,B] Department of Medical Oncology, Mannheim University Medical Center, Mannheim, Germany. [Lopes de Mello,CA] Department of Medical Oncology, A.C. Camargo Cancer Center, São Paulo, Brazil. [Maki,R] Department of Medical Oncology, Abramson Cancer Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA. [Martínez-Said,H] Department of Medical Oncology, Instituto Nacional de Cancerología, Mexico City, Mexico. [Martinez-Tlahuel,JL] Department of Surgery, Instituto Nacional de Cancerología, Mexico City, Mexico. [Morales-Pérez,JM] Radiology Department, University Hospital Virgen del Rocio, Seville, Spain. [Muñoz-Casares,FC] Department of Surgery, University Hospital Virgen del Rocio, Seville, Spain. [Nakagawa,SA] Department of Orthopedics, A.C. Camargo Cancer Center, São Paulo, Brazil. [Ortiz-Cruz,EJ] Orthopedic Surgery and Traumatology Department, La Paz University Hospital, Madrid, Spain. [Palmerini,E] Department of Medical Oncology, Rizzoli Orthopedic Institute, Bologna, Italy. [Patel,S] Department of Melanoma Medical Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas, USA. [Stacchiotti,S] Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori and University of Milan, Milan, Italy. [Sunyach,MP] Department of Radiation Therapy, Centre León Bérard, Lyon, France. [Valverde,CM] Department of Medical Oncology, Vall d'Hebron Hospital, Barcelona, Spain.[Blay,JY] Department of Medical Oncology, Centre León Bérard, Lyon, France., SELNET has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 825806., Martin‐Broto, Javier [0000-0001-7350-6916], Martin-Broto J., Hindi N., Aguiar S., Badilla-Gonzalez R., Castro-Oliden V., Chacon M., Correa-Generoso R., de Alava E., Donati D.M., Eriksson M., Falla-Jimenez M., German G., Gobo Silva M.L., Gouin F., Gronchi A., Haro-Varas J.C., Jimenez-Brenes N., Kasper B., Lopes de Mello C.A., Maki R., Martinez-Delgado P., Martinez-Said H., Martinez-Tlahuel J.L., Morales-Perez J.M., Munoz-Casares F.C., Nakagawa S.A., Ortiz-Cruz E.J., Palmerini E., Patel S., Moura D.S., Stacchiotti S., Sunyach M.P., Valverde C.M., Waisberg F., and Blay J.-Y.