1 Department of Anesthesia and Critical Care, Kobe City Medical Center General Hospital, 2-1-1, Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo, 650-0047, Japan. tatebemasao@icloud.com.
2 Department of Intensive Care Medicine, Iizuka Hospital, 3-83, Yoshio-Machi, Iizuka, Fukuoka, 820-5744, Japan.