1993 communications survey.
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Emergency Care Information Center, Carlsbad, CA.
D017732:Air Ambulances / Q000706:statistics & numerical data*; D004631:Emergency Medical Service Communication Systems / Q000706:statistics & numerical data* / Q000639:trends; D004634:Emergency Medical Technicians / Q000191:economics / Q000706:statistics & numerical data; D012456:Salaries and Fringe Benefits / Q000706:statistics & numerical data; D011795:Surveys and Questionnaires; D013685:Telecommunications / Q000295:instrumentation; D014481:United States