Felhendler, David P.T.; Lisander, Björn M.D., Ph.D.
Department of Anesthesiology, Faculty of Health Sciences, Linköping, Sweden
Manuscript submitted February 8, 1996; revision received June 18, 1996; accepted for publication August 8, 1996.
Address correspondence and reprint requests to Dr. B. Lisander at Department of Anesthesiology, Faculty of Health Sciences, S-581 85, Linköping, Sweden.