[American Thoracic Society American Thoracic Society 2009 International Conference, May 15-20, 2009 • San Diego, California - ()] C65. PULMONARY HYPERTENSION ASSOCIATED WITH LUNG DISEASES OR OTHER ILLNESSES: PATHOGENESIS, DIAGNOSIS, AND CLINICAL OUTCOMES - Anti-Vascular Smooth Muscle Cell Antibodies in the Serum of Patients with Idiopathic and Systemic Sclerosis-Associated Pulmonary Arterial Hypertension Bind to Cytoskeleton, Oxidative Stress and Cell Cycle Antigens.