Irene M Lang is a clinical cardiologist and Professor of Vascular Biology at the Medical University of Vienna. She is directing an out-patient clinic for pulmonary vascular diseases and is engaged in interventional cardiology, including coronary and valvular interventions. She also directs a basic research laboratory pursuing the biology of vascular occlusions, with a special focus on chronic thromboembolic pulmonary hypertension. Professor Lang is a Member of the Austrian and European Societies of Cardiology, Director of the Working Group of Cardiopulmonary Medicine of the Austrian Society of Cardiology, Co-Director of the PhD Curriculum of the Medical University of Vienna and Section Editor for Thrombosis and Haemostasis. She has been nominated as one of the WMA–Caring Physicians of the World 2005.