1. Global Research and Development, St. Jude Medical; Sylmar CA USA
2. Department of Physiology; University of Oklahoma Health Sciences Center; Oklahoma City OK USA
3. Innovative Clinical Trials, Department of Cardiology and Pneumology; University Medical Center Göttingen (UMG); Göttingen Germany
4. Division of Cardiovascular Disease; University of Alabama; Birmingham AL USA
5. Division of Cardiovascular Medicine; The Ohio State University; Columbus OH USA