1. Department of Internal Medicine, Yale Cardiovascular Research Center, Section of Cardiovascular Medicine (J.M.D., R.C., A.N., J.S., K.A.M., D.M.G.), Yale University, New Haven, CT.
2. Department of Genetics (J.M.D., A.N., J.S., D.M.G.), Yale University, New Haven, CT.
3. Department of Pediatrics (A.A., P.B.), Albert Einstein College of Medicine, Bronx, NY.
4. Dominick P. Purpura Department of Neuroscience (P.B.), Albert Einstein College of Medicine, Bronx, NY.