1. A study of overwork among emergency physicians from 10 tertiary critical care emergency centers in Japan.;Okamoto;JJAAM,2009
2. Sleep deprivation and clinical performance.;Weinger;JAMA,2002
3. Burnout, depression, and quality of life among Japanese emergency physicians.;Kishi;Jpn J Gen Hosp Psychiatry,2000
4. An occupational health study of emergency physicians in Japan: health assessment by immune variables (CD4, CD8, CD56, and NK cell activity) at the beginning of work.;Okamoto;J Occup Health,2008
5. A study of emergency physicians in Japan through analysis of stress and arouse at the beginning of their work using the Japanese translated version of Stress Arousal Checklist (SACL).;Okamoto;Job Stress Res,2007