[1] Hokkaido Univ, Grad Sch Med, Dept Anesthesiol & Crit Med, Dept Acute & Crit Care Med,Sapporo Higashi Tokush, Sapporo, Hokkaido, Japan
[2] Kameda Med Ctr, Emergency & Trauma Ctr, Kamogawa, Japan
[3] Osaka Gen Med Ctr, Div Trauma & Surg Crit Care, Osaka, Japan
[4] Osaka Univ, Grad Sch Med, Dept Traumatol & Acute Crit Med, Suita, Osaka, Japan
[5] Natl Def Med Coll, Res Inst, Div Traumatol, Tokorozawa, Saitama, Japan
[6] Keio Univ, Sch Med, Ctr Gen Med Educ, Tokyo, Japan
[7] Univ Occupat & Environm Hlth, Sch Med, Dept Emergency Med, Kitakyushu, Fukuoka, Japan
[8] Tohoku Univ, Grad Sch Med, Div Emergency & Crit Care Med, Sendai, Miyagi, Japan
[9] Univ Tsukuba, Hlth Serv Res & Dev Ctr, Juntendo Univ, Dept Gen Med, Tsukuba, Ibaraki, Japan
[10] Kawasaki Med Sch, Dept Acute Med, Kawasaki, Kanagawa, Japan
[11] Chiba Univ, Grad Sch Med, Dept Emergency & Crit Care Med, Chiba, Japan
[12] Kyorin Univ, Sch Med, Dept Trauma & Crit Care Med, Mitaka, Tokyo, Japan
[13] St Lukes Int Hosp, Dept Emergency & Crit Care Med, Tokyo, Japan
[14] Tokyo Med & Dent Univ, Med Hosp, Trauma & Acute Crit Care Ctr, Tokyo, Japan
[15] Kitakyushu City Yahata Hosp, Ctr Gastroenterol & Liver Dis, Dept Surg, Kitakyushu, Fukuoka, Japan
[16] Kobe Univ, Grad Sch Med, Dept Surg Related, Div Disaster & Emergency Med, Kobe, Hyogo, Japan
[17] Saga Univ Hosp, Emergency & Crit Care Med, Saga, Japan
[18] Keio Univ, Sch Med, Dept Emergency & Crit Care Med, Tokyo, Japan
[19] Aizu Chuo Hosp, Dept Emergency & Crit Care Med, Aizu Wakamatsu, Fukushima, Japan
[20] Kawasaki Municipal Kawasaki Hosp, Emergency & Crit Care Ctr, Kawasaki, Kanagawa, Japan
[21] Yamaguchi Univ, Adv Med Emergency & Crit Care Ctr, Ube, Yamaguchi, Japan
[22] Natl Ctr Global Hlth & Med, Ctr Hosp, Tokyo, Japan
[23] Nippon Med Sch, Dept Emergency & Crit Care Med, Tokyo, Japan
[24] Aichi Med Univ Hosp, Adv Crit Care Ctr, Nagakute, Aichi, Japan
[25] Kurume Univ Hosp, Adv Emergency Med Serv Ctr, Kurume, Fukuoka, Japan
[26] Teikyo Univ, Sch Med, Dept Emergency Med, Tokyo, Japan
[27] Chukyo Hosp, Japan Community Healthcare Org, Crit Care Med & Burn Ctr, Dept Trauma, Nagoya, Aichi, Japan
[28] Nagasaki Univ Hosp, Nagasaki, Japan
[29] Osaka City Univ Hosp, Osaka, Japan
[30] Tokyobay Urayasu Ichikawa Med Ctr, Urayasu, Japan
[31] Aso Iizuka Hosp, Iizuka, Fukuoka, Japan
[32] Tomei Atsugi Hosp, Atsugi, Kanagawa, Japan
[33] Hiratsuka City Hosp, Hiratsuka, Kanagawa, Japan
[34] Natl Hosp Org Sendai Med Ctr, Sendai, Miyagi, Japan
[35] Ehime Univ Hosp, Toon, Japan
[36] Okayama Univ Hosp, Okayama, Japan
[37] Tokuyama Cent Hosp, Shunan, Japan
[38] Fukuyama City Hosp, Fukuyama, Hiroshima, Japan
[39] JA Hiroshima Gen Hosp, Hatsukaichi, Japan
[40] Kumamoto Univ Hosp, Kumamoto, Japan
[41] Hachinohe Municipal Hosp, Hachinohe, Aomori, Japan
[42] Osaka City Gen Hosp, Osaka, Japan
[43] Natl Hosp Org Disaster Med Ctr, Tachikawa, Tokyo, Japan
[44] Univ Toyama, Toyama, Japan
[45] Sapporo Med Univ, Sapporo, Hokkaido, Japan
[46] Okayama Saiseikai Gen Hosp, Okayama, Japan
[47] Juntendo Univ, Nerima Hosp, Tokyo, Japan
[48] Natl Hosp Org Hokkaido Med Ctr, Sapporo, Hokkaido, Japan
[49] Akita Univ Hosp, Akita, Japan
[50] Japanese Red Cross Soc Kyoto Daini Hosp, Kyoto, Japan