1. Assistant Professor of Anesthesiology, Loma Linda University.
2. Assistant Professor of Anesthesiology, University of California at San Diego.
3. Professor and Chairman, Department of Anesthesiology; Professor of Neurosurgery, University of California at San Diego.
4. Staff Anesthesiologist, Veteran's Administration Medical Center, San Diego; Associate Professor of Clinical Anesthesiology, University of California at San Diego.