ERBB2 and breast cancer: In contrast, the HER2 positive breast cancer and the TNBC which account for 1.8% and 4.7%, respectively in our study are less than published data in which the range of HER2 positive breast cancer is between 3.0% and 9.7% and the range of the TNBC is between 7.9% and 12.0% [1,15,16,25,26,27,28,29,30].