?:authorAffiliation
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[\'Division of Cardiology, Columbia University Irving Medical Center, New York, New York. Electronic address: ed2817@cumc.columbia.edu.\', \'Division of Cardiology, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.\', \'Division of Cardiology, Columbia University Irving Medical Center, New York, New York.\', \'Division of Cardiovascular Medicine, Brigham and Women\'s Hospital, Harvard Medical School, Boston, Massachusetts.\', \'Vanderbilt Heart and Vascular Institute, Nashville, Tennessee.\', \'American Heart Association, Dallas, Texas.\']
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