SWOG Phase III Trial of Continuous Schedule AC+G Vs. Q2 Week Schedule AC; Followed by Paclitaxel Given Either Every 2 Weeks or Weekly for 12 Weeks as Post-Operative Adjuvant Therapy in Node-Positive or High-Risk Node-Negative Breast Cancer Adult CIRB - Late Phase Emphasis Closed to Accrual. Pts Have Completed Intervention Available to Open