1. Division of Rheumatology (I.A., J.T.G., J.M.B.), Columbia University College of Physicians and Surgeons, New York Presbyterian Hospital.
2. Division of Cardiology (C.R., A.T., R.W., S.B.), Columbia University College of Physicians and Surgeons, New York Presbyterian Hospital.
3. Current address for Cesare Russo: Novartis Institutes for BioMedical Research, Basel, Switzerland.
4. Current address for Aylin Tugcu: Bristol Myers Squibb, Lawrenceville, NJ.
5. Nuclear Cardiology Laboratory (R.W., S.B.), Columbia University College of Physicians and Surgeons, New York Presbyterian Hospital.