Responsiveness of adjacent ductal carcinoma in situ and changes in HER2 status after neoadjuvant chemotherapy/trastuzumab treatment in early breast cancer–results from the GeparQuattro study (GBG 40)

Minckwitz G et al. Responsiveness of adjacent ductal carcinoma in situ and changes in HER2 status after neoadjuvant chemotherapy/trastuzumab treatment in early breast cancer–results from the GeparQuattro study (GBG 40). Breast Cancer Res Treat 2011; Apr;132(3):863-70. doi: 10.1007/s10549-011-1621-0