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The mobilized coronary care system in Columbus, Ohio, began with operation of a single vehicle with a physician in attendance. Currently, advanced emergency medical technician-paramedics work without direct physician supervision. When both experiences are compared, the results indicate that advanced emergency medical technician-paramedics working independently perform as well as physician counterparts. (JAMA241:1902-1904, 1979)
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Richard P. Lewis (1979) studied this question.
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