(Oda) Associate Professor.(Hamasaki) Staff Anesthesiologist.Received from the Department of Anesthesiology and Critical Care Medicine, Kagoshima University, Faculty of Medicine, Kagoshima-Shi, Japna. Submitted for publication February 3, 1997. Accepted for publication June 11, 1997.Address reprint requests to Dr. Oda: Department of Anesthesiology and Critical Care Medicine, Faculty of Medicine, Kagoshima University, 8–35–1 Sakuragaoka, Kagoshima-Shi, 890, Japan. Address electronic mail to: firstname.lastname@example.org.