Rugo HS, Cortes J, Awada A, O’Shaughnessey J, Twelves CJ, Im SA, Hannah A, Lu L, Sy S, Caygill K, Zajchowski DA, Davis DW, Tagliaferri MA, Hoch U, Perez EA. “Change in topoisomerase 1 (Top1) positive circulating tumor cells impacts overall survival in patients with advanced breast cancer after treatment with etirinotecan pegol.” Clin Cancer Res, April 4 2018. DOI: 10.1158/1078-0432.CCR-17-3059

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