Affiliation: | 1. Section of Cardiology, Guthrie Clinic/Robert Packer Hospital, Sayre, Pennsylvania;2. Department of Cardiology, Geisinger Clinic, Wilkes‐Barre, Pennsylvania;3. Department of Internal Medicine, Guthrie Clinic/Robert Packer Hospital, Sayre, Pennsylvania;4. Department of Cardiology, University of Pennsylvania, Philadelphia, Pennsylvania |