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J Am Coll Cardiol, 2003; 42:81-87, doi:10.1016/S0735-1097(03)00498-4 © 2003 by the American College of Cardiology Foundation |



* Foothills Hospital/University of Calgary, Calgary, Alberta, Canada
AVID Clinical Trial Center/University of Washington, Seattle, Washington, USA
Institut fuer Medizinische Statistik, Munich, Germany
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