Drug use and abuse presents a significant problem to individuals, families, and law enforcement in communities across the United States. Methamphetamine is a particular concern in one rural eastern Missouri county. Much work being done in this county by multiple agencies to decrease methamphetamine production and use. Little attention, however,…

Background: While higher smoking prevalences have been better described for adults and adolescents in the mountainous areas than in the plain area in Taiwan, no studies have previously examined whether this disparity begins with children in elementary schools. The purpose of this study was thus designed to explore clustering in smoking behavior…