1. Medical School, Medical Scientist Training Program (MSTP), University of Minnesota Medical School, Twin Cities, Minneapolis, MN 55455, USA
2. Department of Medicine, Cardiovascular Division, University of Minnesota Medical School, Twin Cities, Minneapolis, MN, 55455, USA
3. Department of Neurology, University of Minnesota Medical School, Twin Cities, 420 Delaware St. SE, MMC 508 Cardiology, Minneapolis, MN USA