1. Departments of Internal Medicine (W.M.), Mayo Clinic, Jacksonville, FL.
2. Cardiovascular Diseases (W.M., T.M.-L., N.J., F.K.), Mayo Clinic, Jacksonville, FL.
3. Department of Cardiovascular Diseases, Mayo Clinic, Scottsdale, AZ (L.S., D.B., M.D., D.S.).
4. Departments of Health Sciences Research (C.K., J.R., C.N.), Mayo Clinic, Rochester, MN.
5. Cardiovascular Diseases (V.V., K.C., F.D.C.M., Y.-m.C.), Mayo Clinic, Rochester, MN.