1. Department of Cardiovascular Diseases, (A.H.C., M.M.R.), Mayo Clinic, Rochester, MN.
2. Division of Cardiothoracic Surgery, Froedtert and the Medical College of Wisconsin, Milwaukee (L.D.J., D.L.J.).
3. Department of Cardiothoracic Surgery (J.M.S., S.M., J.A.D.), Mayo Clinic, Rochester, MN.
4. Division of Endocrinology (K.K., K.S.N.), Mayo Clinic, Rochester, MN.
5. Department of Cardiovascular Diseases, Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY (R.J.H.).