Histological diagnosis of non-small cell lung cancer (NSCLC). Squamous cell (epidermoid), adenocarcinoma, bronchoalveolar carcinoma and large cell anaplastic lung carcinoma histologies are eligible. Mixed histologies of NSCLC (i.e., adenosquamous) are eligible. Mixed NSCLC/small cell lung carcinoma (SCLC), and variant large and small cell lung cancer are NOT eligible for this study.