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['breast']
adjuvant chemotherapy is associated with an overall survival benefit regardless of age in patients with er+/her2-breast cancer with 1-3 positive nodes and oncotype dx recurrence score 20 to 25: a national cancer database analysis. #asco22 
Medicina Interna - Oncología Clínica - Profesor Titular @UPBColombia - Clínica Astorga. #Medellín / #Colombia mlujanonco@gmail.com #OncTwitter #Metaanalysis