1. Department of Surgery (Cardiothoracic), Carlyle Fraser Heart Center, Emory University, Atlanta, Georgia.
2. Department of Anesthesiology and Intensive Care Medicine, Aarhus University Hospital, Aarhus, Denmark.
3. Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, Michigan.
4. Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan.
5. Department of Emergency Medicine, Wayne State University School of Medicine, Detroit, Michigan.