1. Yale University School of Medicine, New Haven, Connecticut
2. University of Birmingham Institute of Cardiovascular Sciences, City Hospital, Birmingham, United Kingdom
3. Thrombosis Research Unit, Aalborg University, Aalborg, Denmark
4. Division of Cardiology, Department of Medicine, Columbia University Medical Center, New York, New York
5. New York-Presbyterian Hospital, New York, New York
6. Center for Outcomes Research and Evaluation, Yale University School of Medicine, New Haven, Connecticut