1. From the Texas Cardiac Arrhythmia Institute (P.S., L.D.B., R.H., D.B., J.S., R.B., P.M., A.N.), St David's Medical Center, and Department of Biomedical Engineering (L.D.B., A.N.), University of Texas, Austin, TX; Department of Cardiology, University of Foggia, Foggia, Italy (L.D.B.); Division of Cardiology, Stanford University, Stanford, CA (A.A.-A., A.N.); California Pacific Medical Center, San Francisco, CA (R.H., S.B., A.N.); and Case Western Reserve University School of Medicine, Cleveland, OH ...