1 Division of Cardiovascular Medicine, Harvard-Thorndike Electrophysiology Institute, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (J.W.W.). Knight Cardiovascular Institute, Oregon Health and Science University, Portland (E.A.P.-A., L.G.T.).
2 Division of Cardiovascular Medicine, Harvard-Thorndike Electrophysiology Institute, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (J.W.W.). Knight Cardiovascular Institute, Oregon Health and Science University, Portland (E.A.P.-A., L.G.T.). tereshch@ohsu.edu.