1. Irita K, Tsuzaki K, Sanuki M, Sawa T, Nakatsuka H, Makita K, Morita K. Downward trend in the incidence of life-threatening accidental events—2005 Survey on anesthesia-related life-threatening events and trends in the past 5 years. Report by theAccidental Event Working Group, Safety Committee of the Japanese Society of Anesthesiologists. Masui (Jpn J Anesthesiol). 2007;56:1433–46 (in Japanese with English abstract).
2. Irita K, Nakatsuka H, Tsuzaki K, Sawa T, Sanuki M, Makita K, Morita K. Background factors, causes, and prognosis of cardiovascular accidents that occurred in operating rooms—2004 Survey on anesthesia-related events. Report by the Accidental Event Working Group, Safety Committee of the Japanese Society of Anesthesiologists. Masui (Jpn J Anesthesiol). 2007;56:965–76 (in Japanese with English abstract).
3. Irita K, Tsuzaki K, Sawa T, Sanuki M, Nakatsuka H, Makita K, Morita K. Statistics of pediatric anesthesia based on the survey on anesthesia-related events. Report by the Accidental Event Working Group, Safety Committee of the Japanese Society of Anesthesiologists. Masui (Jpn J Anesthesiol). 2007;56:93–102 (in Japanese with English abstract).
4. Irita K, Kawashima Y, Morita K, Seo N, Iwao Y, Tsuzaki K, Makita K, Kobayashi Y, Sanuki M, Sawa T, Obara H, Omura A. Life-threatening accidental events that occurred in patients without preoperative complication who received a scheduled surgery—from the Survey on anesthesia-related events 1999–2002. Report by theAccidental Event Working Group, Safety Committee of the Japanese Society of Anesthesiologists. Masui (Jpn J Anesthesiol). 2005;54:939–48 (in Japanese with English abstract).
5. Irita K, Kawashima Y, Morita K, Seo N, Iwao Y, Sanuki M, Sawa T, Kobayashi Y, Makita K, Tsuzaki K, Obara H, Omura A. 2003 Additional survey on anesthesia-related events caused by hemorrhagic shock as a preoperative complication and major hemorrhage associated with surgery. Report by theAccidental Event Working Group, Safety Committee of the Japanese Society of Anesthesiologists. Masui (Jpn J Anesthesiol). 2005;54:77–86 (in Japanese with English abstract).