Phase II trial of gemcitabine and nab-paclitaxel in patients with recurrent Ewing sarcoma: A report from the National Pediatric Cancer Foundation. - Oesterheld JE; Reed DR; Setty BA; Isakoff MS; Thompson P; Yin H; Hayashi M; Loeb DM; Smith T; Makanji R; Fridley BL; Wagner LM (Pediatric blood & cancer, 2020)