1. Assistant Professor, Department of Anesthesiology, University of Virginia School of Medicine, Charlottesville, Virginia.
2. Assistant Professor, Department of Anesthesia, University of California, San Francisco Medical Center, San Francisco, California.
3. Resident and Research Trainee, Department of Anesthesia, University of California, San Francisco Medical Center, San Francisco, California.
4. CDR, United States Naval Hospital, Oakland, California.
5. Assistant Clinical Professor, Department of Anesthesia, University of California, San Francisco Medical Center, San Francisco, California.