3 Azizun-Nisa Azizun-Nisa Bhurgri Y Bhurgri Y Raza Raza F F Kayani Kayani N N Comparison of ER, PR & HER 2/Neu (C-erb B2) reactivity pattern with histologic grade, tumor size and lymph node status in breast cancer Comparison of ER, PR & HER 2/Neu (C-erb B2) reactivity pattern with histologic grade, tumor size and lymph node status in breast cancer Asian Pac J Cancer Prev Asian Pac J Cancer Prev 2008 2008 9 9 553 553 556 556 19256737 19256737. The gene discussed is ESR1; the disease is cancer.