1. Department of Cardiovascular Medicine, Summa Health Heart and Vascular Institute, Akron, OH (W.A.).
2. Center for the Diagnosis and Treatment of Pericardial Diseases, Heart and Vascular Institute (B.X., V.M., A.K., P.C.C., A.L.K.), Cleveland Clinic, OH.
3. Cardiovascular Section, Imaging Institute (A.S., M.A.B.), Cleveland Clinic, OH.
4. Cleveland Clinic Alumni Library (M.S.), Cleveland Clinic, OH.