(1)Doxorubicin 60 mg/m2 + Cyclophosphamide 600 mg/m2(AC X 4cycles) or (2)Cyclophosphamide 500 mg/m2 + Doxorubicin 50 mg/m2 + 5-FU 500 mg/m2 (CAF X 6 cycles) 7.Laboratory test results within 30 days prior to study entry: