Affiliation: | 1. Warren Clinic Cardiology of Tulsa, Division of Cardiology, Saint Francis Hospital, Tulsa, Oklahoma, USA;2. Division of Cardiology, Southwestern School of Medicine, University of Texas, Forth Worth, Texas, USA;3. Division of Cardiology, University of Florida Health, Jacksonville, Florida, USA;4. Department of Internal Medicine, Reno School of Medicine, University of Nevada, Reno, Nevada, USA |