1. Departments of Genetics (O.T.H., R.K.G., P.W., K.H.K.), Philadelphia, Pennsylvania 19104;
2. Sarah W. Stedman Nutrition and Metabolism Center and Departments of Pharmacology and Cancer Biology and Medicine (H.E.H., T.C.B., C.B.N.), Duke University Medical Center, Durham, North Carolina 27704;
3. Computational Biology and Informatics Laboratory (E.M., C.J.S.), University of Pennsylvania, Philadelphia, Pennsylvania 19104
4. Biochemistry and Biophysics (N.M.D., F.M.M.), University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104;