1. Instructor in Anesthesia. Present address: Department of Anesthesiology, George Washington University Medical Center. 901 23rd St. N.W., Washington, D.C. 20037.
2. Resident Fellow in Anesthesia, Lt. Cmdr. M.C. U.S.N.R., Department of Anesthesia, U.S.N.R.M.C., Philadelphia.
3. Associate Professor of Anesthesia and Neyrosurgery. Present address: Department of Anesthesia, University of California, San Diego, University Hospital, 225 West Dickinson Street, San Diego, California 92103.