Gregg W. Stone is a professor of medicine at Columbia University, director of cardiovascular research and education at the Center for Interventional Vascular Therapy at New York Presbyterian Hospital/Columbia University Medical Center, and co-director of medical research and education at the Cardiovascular Research Foundation in New York. Dr. Stone has served as the national or international principal investigator for more than 100 multicenter randomized trials; authored more than 2,000 book chapters, manuscripts, and abstracts published in peer-reviewed literature; and delivered thousands of invited lectures around the world.