Risky sexual behaviours among injection drugs users with high HIV prevalence: implications for STD control
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M. Schechter | M. Tyndall | Kathy Li | M. O’Shaughnessy | P. Spittal | D. Patrick | K. Li | M. O'shaughnessy | M. O'Shaughnessy | Martin T. Schechter | Mark W. Tyndall | David M. Patrick