[1] St Lukes Int Hosp, Dept Emergency & Crit Care Med, Tokyo, Japan
[2] Hyogo Emergency Med Ctr, Dept Emergency & Crit Care Med, Kobe, Hyogo, Japan
[3] Nippon Med Sch, Dept Emergency & Crit Care Med, Tokyo, Japan
[4] Nihon Univ Hosp, Dept Cardiol, Tokyo, Japan
[5] Japan Red Cross Maebashi Hosp, Dept Emergency Med & Crit Care Med, Adv Med Emergency Dept, Maebashi, Gumma, Japan
[6] Japan Red Cross Maebashi Hosp, Crit Care Ctr, Maebashi, Gumma, Japan
[7] Kagawa Univ Hosp, Dept Emergency Disaster & Crit Care Med, Miki, Kagawa, Japan
[8] Osaka Mishima Emergency & Crit Care Ctr, Emergency Med, Takatsuki, Osaka, Japan
[9] Osaka City Gen Hosp, Emergency & Crit Care Med Ctr, Osaka, Japan
[10] Natl Hosp Org Disaster Med Ctr, Dept Crit Care Med & Trauma, Tokyo, Japan
[11] Aizu Cent Hosp, Dept Emergency & Crit Care Med, Fukushima, Japan
[12] Saitama Red Cross Hosp, Adv Emergency & Crit Care Ctr, Saitama, Japan
[13] Teikyo Univ Hosp, Trauma & Resuscitat Ctr, Tokyo, Japan
[14] Urasoe Gen Hosp, Dept Emergency & Crit Care Med, Okinawa, Japan
[15] Toyooka Hosp, Tajima Emergency & Crit Care Med Ctr, Toyooka, Hyogo, Japan
[16] JA Hiroshima Gen Hosp, Dept Emergency & Intens Care Med, Hiroshima, Japan
[17] Okayama Univ Hosp, Adv Emergency & Crit Care Med Ctr, Okayama, Japan
[18] Osaka Univ, Dept Traumatol & Acute Crit Med, Grad Sch Med, Osaka, Japan
[19] Yokohama City Univ, Adv Crit Care & Emergency Ctr, Med Ctr, Yokohama, Kanagawa, Japan
[20] Sapporo Med Univ, Dept Emergency Med, Sapporo, Hokkaido, Japan
[21] Teine Keijinkai Hosp, Emergency & Crit Care Med Ctr, Sapporo, Hokkaido, Japan
[22] Saiseikai Senri Hosp, Senri Crit Care Med Ctr, Suita, Osaka, Japan
[23] Tokyo Med & Dent Univ, Trauma & Acute Crit Care Med Ctr, Hosp Med, Tokyo, Japan
[24] Tohoku Univ, Div Emergency & Crit Care Med, Grad Sch Med, Sendai, Miyagi, Japan
[25] Tokyo Womens Med Univ, Dept Emergency & Crit Care Med, Med Ctr East, Tokyo, Japan
[26] Gunma Univ, Dept Emergency Med, Grad Sch Med, Maebashi, Gumma, Japan
[27] Hiroshima Citizens Hosp, Dept Emergency Med, Hiroshima, Japan
[28] Kobe City Med Ctr Gen Hosp, Dept Emergency Med, Kobe, Hyogo, Japan
[29] Keio Univ, Dept Emergency & Crit Care Med, Sch Med, Tokyo, Japan
[30] Hokkaido Univ Hosp, Emergency & Crit Care Ctr, Sapporo, Hokkaido, Japan
[31] Natl Cerebral & Cardiovasc Ctr, Div Cardiovasc Care Unit, Dept Cardiovasc Med, Suita, Osaka, Japan
[32] Tama Nagayama Hosp, Dept Emergency & Crit Care Med, Nippon Med Sch, Tokyo, Japan
[33] Dokkyo Med Univ, Emergency & Crit Care Ctr, Mibu, Tochigi, Japan
[34] Omihachiman Community Med Ctr, Dept Cardiovasc Med, Shiga, Japan
[35] Utsunomiya Hosp, Dept Emergency Med & Crit Care Med, Tochigi Emergency & Crit Care Ctr, Imperial Fdn Saiseikai, Utsunomiya, Tochigi, Japan
[36] Kimitsu Chuo Hosp, Dept Emergency & Crit Care Med, Chiba, Japan
[37] Tokyo Metropolitan Bokutoh Hosp, Tertiary Emergency Med Ctr, Tokyo, Japan