1. Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States
2. Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, North Carolina, United States
3. McAllister Heart Institute, Division of Cardiology, Department of Medicine, University of North Carolina, Chapel Hill, North Carolina, United States
4. Center for Drug Discovery, Organic and Medicinal Chemistry, RTI International, Research Triangle Park, North Carolina, United States