1. Department of Anesthesia, Kyoto University Hospital, Kyoto, Japan
2. Department of Anesthesiology, Tohoku University Hospital, Sendai, Japan
3. Department of Anesthesiology, Kansai Medical University, Hirakata, Osaka, Japan
4. Department of Anesthesia, Tazuke Kofukai Medical Research Institute Kitano Hospital, Osaka, Japan
5. Minase Research Institutes, Research Headquarters, Ono Pharmaceutical, Osaka, Japan