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3. Trends in child and teen non-prescription drug abuse reported to a regional poison control center;Crouch;Am J Health-Syst Pharm,2004
4. The abuse of dextromethorphan-based cough syrup: a pilot study of the community of Waynesboro, Pennsylvania;Darboe;Adolescence,1996
5. A possible trend suggesting increased abuse from Coricidin exposures reported to the Texas Poison Network: comparing 1998 to 1999;Baker;Vet Hum Toxicol,2002