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Substance use in young people is a global problem, with potential adverse effects on physical, mental, and social wellbeing. The situation of substance use varies geographically worldwide. We did a systematic review and meta-analysis to quantify the estimates of prevalence of substance use in people aged 10–24 years in China. We searched PubMed, Ovid, China National Knowledge Infrastructure, Wangfang...
Opioid dependence is associated with high risk of premature death. Opiate-substitution treatment (OST) is the major treatment in community for opioid dependence worldwide. We aimed to estimate crude mortality rates (CMRs) and the effects of OST on mortality risk by meta-analysis. We searched PubMed and Embase databases for articles that were published until Sept 30, 2016 with a combination of terms...
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