title: Up all night.
authors.forename: John R
authors.initials: JR
authors.lastname: Clark
mesh_terms: D017732:Air Ambulances / Q000331:legislation & jurisprudence / Q000592:standards; D004632:Emergency Medical Services / Q000331:legislation & jurisprudence / Q000592:standards; D006801:Humans; D009784:Occupational Diseases / Q000209:etiology* / Q000517:prevention & control; D017410:Practice Guidelines as Topic; D020178:Sleep Disorders, Circadian Rhythm / Q000209:etiology* / Q000517:prevention & control; D014481:United States; D014940:Work Schedule Tolerance