The combination of Ki67 histological grade and estrogen receptor status identifies a low-risk group among 1854 chemo-naïve women with N0/N1 primary breast cancer

摘要

BackgroundThe aim was to confirm a previously defined prognostic index, combining a proliferation marker, histological grade, and estrogen receptor (ER) in different subsets of primary N0/N1 chemo-naïve breast cancer patients.