Frequent Needle Exchange Use and HIV Incidence in Vancouver, Canada
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PII: S0002-9343(06)00279-8
doi:10.1016/j.amjmed.2006.02.030
© 2007 Elsevier Inc. All rights reserved.
PII: S0002-9343(06)00279-8
doi:10.1016/j.amjmed.2006.02.030
© 2007 Elsevier Inc. All rights reserved.