?:authorAffiliation
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[\'Division of Cardiology, Department of Medicine, Brigham and Women\'s Hospital, Harvard Medical School, 75 Francis Sreet, Boston, MA 02115, USA.\', \'Center for Care Delivery and Outcomes Research, Minneapolis VA Health Care System, University of Minnesota, MN, USA.\', \'Peter Munk Cardiac Centre, Toronto General Hospital, Toronto, ON, Canada.\', \'Department of Medicine, Boston VA, Boston, MA, USA.\', \'Department of Biostatistics and Medical Informatics, University of Wisconsin, Madison, WI, USA.\']
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