Dr James Douketis, MD, is a professor of medicine and the David Braley-Nancy Gordon Chair in Thromboembolic Disease at McMaster University. Co-author of clinical practice guidelines on antithrombotic therapy from the American College of Chest Physicians. Author of over 400 peer-reviewed publications in high-impact journals. Past president of Thrombosis Canada. Associate editor and author of chapters on anticoagulation and venous thromboembolism in the McMaster Textbook of Internal Medicine.