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*Fellow, Pediatric Emergency Medicine, Feinberg School of Medicine, Northwestern University; and †Associate Professor of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago Illinois. Dr. Horowitz and Dr. Reynolds have disclosed that they have no significant relationship with or financial interests in any commercial companies that pertain to this educational activity. Address correspondence and reprint requests to Sally Reynolds, MD, Northwestern University Medical School, CMH ED, 2300 Children's Plaza Box 62, Chicago IL 60614.
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Horowitz et al. (2004) studied this question.
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