1. Department of Medicine, University of Pennsylvania (D.M.C.).
2. Division of Cardiology, Beth Israel Deaconess Medical Center (F.K.W.).
3. Division of Preventive Medicine and Nutrition, Department of Medicine, Columbia University College of Physicians and Surgeons (G.R.-S.).
4. Department of Food Science and Human Nutrition and Division of Nutritional Sciences. University of Illinois Urbana Champaign (J.A.).