[1] Saiseikai Kumamoto Hosp, Dept Acute Care & Gen Med, Kumamoto, Japan
[2] Keio Univ, Div Gastroenterol & Hepatol, Dept Internal Med, Sch Med, Tokyo, Japan
[3] Tokyo Metropolitan Tama Med Ctr, Dept Gastroenterol & Hepatol, Tokyo, Japan
[4] Jichi Med Univ, Dept Anesthesiol & Crit Care Med, Saitama Med Ctr, 1-847 Amanuma, Saitama 3308503, Japan
[5] Natl Canc Ctr, Dept Hepatobiliary & Pancreat Oncol, Tokyo, Japan
[6] Osaka Saiseikai Senri Hosp, Senri Crit Care Med Ctr, Osaka, Japan
[7] Hiroshima City Hiroshima Citizens Hosp, Dept Anesthesiol & Intens Care, Hiroshima, Japan
[8] Kansai Med Univ, Dept Internal Med 3, Osaka, Japan
[9] Univ Tokyo, Grad Sch Med, Dept Gastroenterol, Tokyo, Japan
[10] Iizuka Hosp, Dept Gen Internal Med, Fukuoka, Japan
[11] Japanese Red Cross Musashino Hosp, Dept Emergency & Crit Care Med, Tokyo, Japan
[12] Japanese Red Cross Maebashi Hosp, Adv Emergency Med & Crit Care Ctr, Gunma, Japan
[13] Harima Rehabil Program Ctr, Dept Med, Kakogawa, Hyogo, Japan
[14] Tokyo Med Univ, Dept Gastroenterol & Hepatol, Hachioji Med Ctr, Tokyo, Japan
[15] Showa Univ, Div Gastroenterol, Dept Med, Sch Med, Tokyo, Japan
[16] Nihon Univ Hosp, Dept Emergency & Crit Care Med, Tokyo, Japan
[17] Fukuyama City Hosp, Emergency Med Ctr, Hiroshima, Japan
[18] Jichi Med Univ, Div Intens Care, Dept Anesthesiol & Intens Care Med, Sch Med, Shimotsuke, Tochigi, Japan
[19] Chiba Univ, Dept Emergency & Crit Care Med, Grad Sch Med, Chiba, Japan
[20] Osaka City Univ, Grad Sch Med, Dept Traumatol & Crit Care Med, Osaka, Japan
[21] Tohoku Univ Hosp, Div Gastroenterol, Sendai, Miyagi, Japan
[22] Nihon Univ, Div Emergency & Crit Care Med, Dept Acute Med, Sch Med, Tokyo, Japan
[23] Gifu Univ, Grad Sch Med, Dept Emergency & Disaster Med, Gifu, Japan
[24] Saka Gen Hosp, Dept Surg, Shiogama, Miyagi, Japan
[25] Hlth Insurance Claims Review & Reimbursement Serv, Miyagi Branch Off, Sendai, Miyagi, Japan
[26] Nagasaki Univ Hosp, Div Intens Care, Nagasaki, Japan
[27] Univ Occupat & Environm Hlth, Sch Med, Dept Emergency Med, Fukuoka, Japan