A Randomized Phase III Trial of IV Carboplatin (AUC 6) and Paclitaxel 175 mg/m2 Q 21 Days X 3 Courses Plus Low Dose Paclitaxel 40 mg/m2/wk Versus IV Carboplatin (AUC 6) and Paclitaxel 175 mg/m2 Q 21 Days X 3 Courses Plus Observation in Patients with Early Stage Ovarian Carcinoma