title: Helicopter retrievals, how sick are the patients?
authors.forename: S W
authors.initials: SW
authors.lastname: Low
mesh_terms: D017732:Air Ambulances / Q000191:economics / Q000706:statistics & numerical data*; D017046:Cost Savings; D006801:Humans; D015601:Injury Severity Score; D009520:New Zealand; D011446:Prospective Studies