1. Departments of Internal Medicine (B.D.S.), Mayo Clinic, Rochester, MN.
2. Cardiovascular Medicine (C.M.W., P.W.O., J.J.M., P.A.P.), Mayo Clinic, Rochester, MN.
3. Pediatric and Adolescent Medicine, Division of Pediatric Cardiology (P.W.O.), Mayo Clinic, Rochester, MN.
4. Laboratory Medicine and Pathology (J.J.M.), Mayo Clinic, Rochester, MN.
5. Biomedical Statistics and Informatics (C.G.S.), Mayo Clinic, Rochester, MN.
6. Cardiovascular Surgery (J.A.D.), Mayo Clinic, Rochester, MN.