1. Staff Physician, Department of Emergency Medicine, Catholic University of Leuven, Leuven, Belgium.
2. Fellow, Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, Wisconsin.
3. Fellow, Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, New York.
4. Associate Member, Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, Washington. Dr. Hill died August 25, 1991.
5. Professor of Anesthesiology and Vice Chair for Research, University of California-San Diego.