[1] Inst Biomed Sevilla, Seville, Spain
[2] Hosp Univ Virgen del Rocio, Seville, Spain
[3] Ist Candiolo FPO IRCCS, Med Oncol, Candiolo, Italy
[4] Hosp Miguel Servet, Dept Med Oncol, Zaragoza, Spain
[5] Hosp Univ La Paz, Dept Oncol Med, Madrid, Spain
[6] Vall dHebron Univ Hosp, Dept Med Oncol, Barcelona, Spain
[7] Hosp Santa Creu & Sant Pau, Dept Med Oncol, Barcelona, Spain
[8] Ist Nazl Tumori Milano Fdn IRCCS, Dept Canc Med, Adult Mesenchymal Tumor Med Oncol Unit, Milan, Italy
[9] IRCCS Ist Ortoped Rizzoli, Chemotherapy Unit, Bologna, Italy
[10] Hosp Univ Virgen del Rocio, Dept Pathol, Seville, Spain
[11] Inst Biomed Sevilla, Adv Therapies & Biomarkers Oncol Grp, Seville, Spain
[12] Hosp Univ Virgen del Rocio, Radiol, Seville, Spain
[13] Fdn IRCCS Ist Nazl Tumori, Dept Diagnost Pathol & Lab Med, Milan, Italy
[14] Hosp Univ Doce Octubrerio Doce Octubre, Med Oncol, Madrid, Spain
[15] Sofpromed, Clin Res, Palma De Mallorca, Spain
[16] Italian Sarcoma Grp, Clin Res, Bologna, Italy