1 Division of Clinical Physiology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Course of Medical and Dental Sciences, Nagasaki, Japan. Electronic address: sanuki@nagasaki-u.ac.jp.
2 Department of Anesthesiology, Osaka Medical College, Osaka, Japan.
3 Department of Dental Anesthesiology, Nagasaki University Hospital, Nagasaki, Japan.
4 Division of Clinical Physiology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Course of Medical and Dental Sciences, Nagasaki, Japan.