Pre-operative Chemotherapy Versus Concurrent Chemoradiotherapy in N2 Positive IIIA Non Small Cell Lung Cancer (NSCLC)

Preoperative Therapy Arm 1. (preoperative chemotherapy) Paclitaxel (90 mg/m2)on day 1 and 8 Cisplatin (40 mg/m2)on day 1 and 8. q 3 weeks, 2 cycles Arm 2. (preoperative chemoradiotherapy) Paclitaxel (50 mg/m2)on day 1, 8, 15, 22 \& 29 Cisplatin (20 mg/m2)on day 1, 8, 15, 22 \& 29. Thoracic radiation therapy (TRT) 1.8 Gy daily, five times per week (45 Gy target dose in 5 weeks). Postoperative Consolidation Chemotherapy: Paclitaxel (90 mg/m2) on day 1 and 8. Cisplatin (40 mg/m2) on day 1 and 8. q 3weeks, 2 cycles