title: Ambulance or helicopter.
authors.forename: D J
authors.initials: DJ
authors.lastname: Steedman
mesh_terms: D000401:Aircraft / Q000191:economics; D000552:Ambulances / Q000191:economics; D003365:Costs and Cost Analysis; D016638:Critical Illness; D004636:Emergency Service, Hospital; D006801:Humans; D010360:Patient Transfer; D012449:Safety; D014187:Transportation of Patients / Q000191:economics; D014193:Trauma Centers; D006113:United Kingdom; D014947:Wounds and Injuries