title: Impact of being "on call".
authors.forename: Russell N
authors.initials: RN
authors.lastname: Van Gelder
authors.forename: Jonathan
authors.initials: J
authors.lastname: Kao
mesh_terms: D004503:Education, Medical, Graduate / Q000458:organization & administration*; D004650:Employee Performance Appraisal; D006801:Humans; D007396:Internship and Residency / Q000458:organization & administration*; D009885:Ophthalmology / Q000193:education*; D010561:Personnel Staffing and Scheduling; D010865:Pilot Projects; D012890:Sleep / Q000502:physiology*; D013689:Telephone; D014851:Wakefulness / Q000502:physiology*; D014940:Work Schedule Tolerance