INTERIM ANALYSIS OF THE SPANISH LUNG CANCER GROUP (SLCG) RANDOMIZED PHASE II TRIAL OF THORACIC RADIOTHERAPY (RT) CONCURRENT WITH CISPLATIN (P) PLUS ORAL VINORELBINE (OV) OR ETOPOSIDE (E) FOR UNRESECTABLE LOCALLY ADVANCED (LA) STAGE III NON-SMALL CELL LUNG CANCER (NSCLC). (GECP10/02)