POSTER SESSION I Monday, March 24, 2003   —  9:30 AM - 12:00 Noon Exhibit Hall A - C PULMONARY PATHOLOGY 202 Lung Tumor Diagnosis and Classification Using Gene Expression Profiles of Needle Aspirates: A Pilot Study (1392) AM Assaad, CA Powell, AC Borczuk College of Physicians and Surgeons, Columbia University, New York, NY