1. Assistant Professor, Department of Anesthesia, Stanford University, Stanford, California; Veterans Administration Medical Center, Palo Alto, California.
2. Staff Anesthesiologist, Department of Anesthesia, St. Elizabeth Community Health Center, Lincoln, Nebraska.
3. Graduate Student, Department of Pharmacology, University of Virginia, Charlottesville, Virginia.
4. Associate Professor, Department of Anesthesiology, University of New Mexico, Albuquerque, New Mexico.