1. From the Division of Cardiovascular Diseases (R.J.R, P.D.S., P.S.T, J.E.L., R.A.S.), Scripps Clinic, La Jolla, Calif; New York University Medical Center (M.J.A.), New York, NY; Northwestern University Feinberg School of Medicine (C.J.D.), Chicago, Ill; Comprehensive Cardiovascular Care Group (A.C.D), Milwaukee, Wis; Stanford University (P.J.F.), Palo Alto, Calif; University of Washington Medical Center (S.L.G.), Seattle, Wash; St. Vincent Hospital (J.B.H.), Indianapolis, Ind; Columbia University (M...