Ethics approval and consent to participate
Breast Cancer
BREAST CANCER
The randomized, prospective ABCSG-34 (EudraCT Number: 2011–004822-85) trial was conducted by the Austrian Breast Cancer and Colorectal Study Group (ABCSG) and was a registered clinical trial. The study has been approved by the responsible ethics committee EC Medical University of Vienna on 12Dec2011. The trial was conducted according to the guidelines of the Declaration of Helsinki and were carried out in accordance with the guidelines for Good Clinical Practice. All patients provided signed informed consent.