Air ambulances--critical care at the roadside?
Le Clerc
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SP
Masud
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D000059:Accidents; D017732:Air Ambulances; D003422:Critical Care / Q000592:standards*; D003695:Delivery of Health Care / Q000592:standards; D004632:Emergency Medical Services / Q000592:standards; D006801:Humans; D013222:State Medicine / Q000592:standards; D006113:United Kingdom