Initial in vivo testing of TPO-receptor agonist eltrombopag in osteosarcoma patient-derived xenograft models by the pediatric preclinical testing consortium. - Nevil G; Roth M; Gill J; Zhang W; Teicher B; Erickson SW; Gatto G; Smith M; Kolb EA; Gorlick R (Pediatric hematology and oncology, 2021)