1. Division of Cardiology, Department of Medicine, University of California, Riverside , 900 University Ave, Riverside, CA 92521 , USA
2. Division of Pediatric Cardiology, Department of Pediatrics, Loma Linda University Children’s Hospital , Loma Linda, CA , USA
3. Division of Cardiology, Department of Medicine, Loma Linda University Medical Center , Loma Linda, CA , USA
4. Section of Cardiology, Department of Medicine, Veterans Administration Loma Linda Healthcare System , Loma Linda, CA , USA