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Literature Reviews: Pharmacology: Over-the-Counter Cold Medications: A Critical Review of Clinical Trials Between 1950 and 1991 Smith MBH,Feldman W. JAMA. 1993;269: 2258-2263. Over-the-Counter Medication Use Among U.S. Preschool-Age Children Cogan MD,Pappas G,Yu SM,Kotelchuck M. JAMA. 1994;272:1025-1030