[1] St Marianna Univ, Sch Med, Dept Emergency & Crit Care Med, Kawasaki, Japan
[2] Kobe City Med Ctr Gen Hosp, Dept Anesthesia & Crit Care, Kobe, Japan
[3] Iizuka Hosp, Dept Intens Care Med, Iizuka, Japan
[4] Iizuka Hosp, Clin Res Support Off, Iizuka, Japan
[5] Seirei Hamamatsu Gen Hosp, Dept Emergency & Crit Care Med, Hamamatsu, Japan
[6] JA Hiroshima Gen Hosp, Dept Emergency & Intens Care Med, Hatsukaichi, Japan
[7] Kurashiki Cent Hosp, Emergency & Crit Care Ctr, Kurashiki, Japan
[8] Nara Prefecture Gen Med Ctr, Div Crit Care Med, Nara, Japan
[9] Kurashiki Cent Hosp, Dept Anesthesiol, Kurashiki, Japan
[10] Tokyo Womens Med Univ, Adachi Med Ctr, Emergency & Crit Care Ctr, Tokyo, Japan
[11] Tokyo Med & Dent Univ Hosp, Trauma & Acute Crit Care Ctr, Tokyo, Japan
[12] Wakayama Med Univ, Dept Emergency & Crit Care Med, Wakayama, Japan
[13] Tokyo Bay Urayasu Ichikawa Med Ctr, Dept Crit Care Med, Urayasu, Japan
[14] Nerima Hikarigaoka Hosp, Dept Crit Care Med, Tokyo, Japan
[15] Japanese Red Cross Wakayama Med Ctr, Dept Emergency Med, Wakayama, Japan
[16] Osaka City Gen Hosp, Emergency & Crit Care Med Ctr, Osaka, Japan
[17] Kagawa Univ Hosp, Emergency Med Ctr, Kita, Japan
[18] Aichi Med Univ Hosp, Dept Anesthesiol, Nagakute, Japan
[19] Hyogo Prefectural Amagasaki Gen Med Ctr, Dept Emergency & Crit Care Med, Amagasaki, Japan