Affiliations

• ¹ Department of Medicine, Mercy Catholic Medical Center, Darby, Pennsylvania, USA.
• ² Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
• ³ Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
• ⁴ Public Health Programs and Surveillance, American Thrombosis and Hemostasis Network, ATHN, USA.
• ⁵ Center for Bleeding and Clotting Disorders, University of Minnesota, Minneapolis, Minnesota, USA.
• ⁶ Eli Lilly and Company, Indianapolis, Indiana, USA.
• ⁷ Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, Pennsylvania, USA.