13 Cheang Cheang MCU MCU Chia Chia SK SK Voduc Voduc D D Gao Gao D D Leung Leung S S Snider Snider J J Watson Watson M M Davies Davies S S Bernard Bernard PS PS Parker Parker JS JS Perou Perou CM CM Ellis Ellis MJ MJ Nielsen Nielsen TO TO Ki67 index, HER2 status, and prognosis of patients with luminal B Breast Cancer Ki67 index, HER2 status, and prognosis of patients with luminal B Breast Cancer J Natl Cancer Inst. Here, ERBB2 is linked to breast cancer.