Air ambulances: missions of mercy or flights of futility?
Naylor
C D
CD
Institute for Clinical Evaluative Sciences, University of Toronto, Ontario, Canada.
McLellan
B A
BA
D017732:Air Ambulances; D002675:Child, Preschool; D005260:Female; D006801:Humans; D017063:Outcome Assessment, Health Care; D011247:Pregnancy