Pazopanib in relapsed osteosarcoma patients: report on 15 cases. (2nd January 2019) - Longhi, Alessandra; Paioli, Anna; Palmerini, Emanuela; Cesari, Marilena; Abate, Massimo E.; Setola, Elisabetta; Spinnato, Paolo; Donati, Davide; Hompland, Ivar; Boye, Kjetil