1. Assistant Professor, Department of Anesthesiology, University of Washington.
2. Professor and Assistant Chairman, Deparment of Anesthesiology; Professor, Obstetrics and Gynecology, University of Colorado. Current address: Professor and Chairman, Department of Anesthesiology, Ohio State University, 410 West 10th Avenue, Columbus, Ohio 43210.
3. Resident, Department of Anesthesiology, University of Washington.
4. Resident, Department of Surgery, University of Washington.