1. From the Departments of Medicine and Biochemistry, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada (R.A.H.)
2. Department of Internal Medicine, Division of Cardiovascular Medicine, Cardiovascular Institute, Stanford University, Palo Alto, CA (J.W.K.)
3. Departments of Internal Medicine and Molecular Genetics, Center for Human Nutrition, University of Texas Southwestern Medical Center, Dallas (J.D.H.).