Shift work, the anaesthetist and Santayana's warning.
D000758:Anesthesia; D005221:Fatigue / Q000209:etiology / Q000503:physiopathology; D041981:Gastrointestinal Tract / Q000503:physiopathology*; D006801:Humans; D008505:Medical Staff, Hospital; D010561:Personnel Staffing and Scheduling; D012892:Sleep Deprivation / Q000503:physiopathology; D020178:Sleep Disorders, Circadian Rhythm / Q000503:physiopathology*; D006113:United Kingdom; D014940:Work Schedule Tolerance / Q000502:physiology