Dr. Hylek is a Professor of Medicine and Director of the Thrombosis and Anticoagulation Service at Boston University Medical Center. She earned her medical degree at the University of Pittsburgh and received her internal medicine training at Massachusetts General Hospital and Harvard Medical School. Research areas include arterial (stroke) and venous thrombosis, anticoagulant therapies, and atrial fibrillation. Recent investigations have included the role of biomarkers in atrial fibrillation related stroke, factors associated with major hemorrhage and antithrombotic therapy, and the efficacy and safety of novel oral anticoagulant drugs. She has served on the executive steering committees for international clinical trials and national registries, event adjudication committees, and data safety monitoring boards. She is a section editor for Thrombosis and Haemostasis, and a member of the International Society of Thrombosis and Haemostasis Executive Committee for World Thrombosis Day.