Arm B: sequential dose-intensified, interval-shortened treatment with Epirubicin (150 mg/m2) d1, q14d - 3× followed by paclitaxel (225 mg/m2) d1, q14d - 3×, followed by CMF (600/40/600 mg/m2) d1/d8, q28d - 3× Obligatory pegfilgratim 6 mg after epirubicin and/or paclitaxel: subcutaneous injection on day 2. After CMF pegfilgrastim should be used as a secondary preventive measure