title: When 3 x 9 = 24 and fewer tired doctors.
authors.affiliation: London University.
authors.forename: Roy
authors.initials: R
authors.lastname: Pounder
mesh_terms: D005221:Fatigue / Q000517:prevention & control*; D006801:Humans; D019300:Medical Errors / Q000517:prevention & control; D005791:Patient Care; D010820:Physicians; D011787:Quality of Health Care; D006113:United Kingdom; D014940:Work Schedule Tolerance