Etiology of drug abuse: a narrative analysis.

J Addict · 2014 · PMC4160618 · PMID 25247105

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an increasing trendno p-value reported

Although the rate of drug abuse is reported to be steady in some countries, it has shown an increasing trend in many developing societies [ 1 ].

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.