Access to trauma care. The Los Angeles County trauma system: a case history.
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D004632:Emergency Medical Services / Q000191:economics / Q000458:organization & administration; D004636:Emergency Service, Hospital / Q000191:economics / Q000458:organization & administration; D006297:Health Services Accessibility / Q000191:economics / Q000458:organization & administration; D006801:Humans; D015141:Los Angeles; D014193:Trauma Centers / Q000191:economics / Q000458:organization & administration