1. Vagelos College of Physicians and Surgeons (A.E.M., L.G.), Columbia University, New York, NY.
2. Department of Medicine (A.E.M.), Columbia University, New York, NY.
3. Division of Cardiology (L.G.), Columbia University, New York, NY.
4. Irving Medical Center, Department of Epidemiology, Mailman School of Public Health (L.G.), Columbia University, New York, NY.