1. Advanced Heart Failure Section, Division of Cardiology, Cleveland Clinic Heart, Vascular and Thoracic Institute, Weston, FL (D.A.B.).
2. Division of Cardiology, University of South Florida College of Medicine, Tampa (A.L.).
3. Internal Medicine Training Program, University of Rochester, NY (J.L.).
4. Department of Surgery, University of Arizona, Tucson (J.G.C.).
5. Division of Cardiothoracic Surgery, Indiana University School of Medicine, Fort Wayne (H.C.).