Dr Mark Crowther received his MD from the University of Western Ontario, where he also undertook Internal Medicine training, followed by Hematology training at McMaster University. Dr Crowther undertook a focused Research Fellowship in Thromboembolism under the direction of Drs Ginsberg, Weitz and Hirsh. Dr Crowther is currently Chair and Professor in the Department of Pathology and Molecular Medicine and a Professor in the Department of Medicine. He also holds the positions of Chair of the Research Advisory Committee for the Heart and Stroke Foundation of Ontario and President of The Anticoagulation Forum. Dr Crowther’s clinical activities focus on the care of patients with thromboembolic disorders, the management of complications of treatments for thromboembolic disorders, and other hematologic conditions. His research endeavors include a wide variety of projects examining the optimal methods to prevent and treat both arterial and venous thrombosis. He holds a Career Investigator Award from the Heart and Stroke Foundation of Canada and the Leo Pharma Chair in Thromboembolism Research at McMaster University.