1. Nara Medical University; Central Operation Room; Shijo-cho 840 Kasahara-shi Nara Japan 634-8522
2. Kyoto University School of Public Health; Department of Health Informatics; Yoshida-Konoe Sakyo Kyoto Japan 606-8501
3. University of Tokyo; Department of Anesthesiology; Hongo Bunkyo Tokyo Japan
4. Nara Medical University; Department of Anesthesia; 840 Shijyouchyo Kashihara Nara Japan 634-8522
5. Jichi Medical University; Department of Anesthesia; 3311-1 Yakushiji Shimotsuke Tochigi Japan 329-0498