1. Research Fellow, The Prince Charles Hospital, Brisbane, Australia.
2. Professor of Anesthesiology, Vice Chairman for Research, University of Alabama Medical Center, Birmingham, Alabama.
3. Professor of Anesthesiology, Director, Division of Cardiothoracic Anesthesiology, Duke University, Durham, North Carolina.
4. Research Assistant, Department of Anesthesiology, University of Alabama Medical Center, Birmingham, Alabama.
5. Associate Professor of Biostatistics and Biomathematics, Department of Biostatistics and Biomathematics, University of Alabama in Birmingham, Birmingham, Alabama.