1. Burnett School of Biomedical Sciences, College of Medicine University of Central Florida Orlando Florida USA
2. Department of Biomedical Sciences, Quillen College of Medicine East Tennessee State University Johnson City Tennessee USA
3. Department of Child Health and Child Health Research Institute, and Department of Medical Pharmacology and Physiology University of Missouri School of Medicine Columbia Missouri USA
4. Department of Medicine, Cardiac Arrhythmia Center and Neurocardiology Research Program of Excellence University of California Los Angeles California USA