1. Division of Cardiovascular Medicine, Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, OH (I.M., Z.C., M.H.E.M., P.R.V.O.S., S.R., S.G.A.-K.).
2. Department of Internal Medicine, Cleveland Clinic Foundation, OH (I.M.).
3. Surgical Services, Louis Stokes VA Medical Center, Cleveland, OH (S.D.).
4. Heart and Vascular Institute, Cleveland Clinic, OH (A.M.).
5. Department of Cardiology, DeBakey Heart and Vascular Center, Houston Methodist Hospital, TX (K.N.).