1. Department of Physiology (G.S., J.K.F.), Medical College of Wisconsin, Milwaukee, WI.
2. Cardiovascular Center (G.S., Z.Z., B.L., M.J.J.-T., H.B.-M., M.E.S., J.K.F.), Medical College of Wisconsin, Milwaukee, WI.
3. Department of Anesthesiology (G.S., B.K., Z.Z., B.L., M.J.J.-T., H.B.-M., M.E.S., J.K.F.), Medical College of Wisconsin, Milwaukee, WI.
4. Department of Surgery, Division of Cardiothoracic Surgery (P.J.P.), Medical College of Wisconsin, Milwaukee, WI.