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Visavakum, Prin, Niramon Punsuwan, Chomnad Manopaiboon, Sarika Pattanasin, Panupit Thiengtham, Suvimon Tanpradech, Wichuda Sukwicha, Mitchell Wolfe, and Dimitri Prybylski. "HIV Prevalence and Risk Behaviors Among People Who Inject Drugs in Songkhla, Thailand: A Respondent-driven Sampling Survey()." Int J Drug Policy 2016.

Visavakum, Prin, et al. "HIV Prevalence and Risk Behaviors Among People Who Inject Drugs in Songkhla, Thailand: A Respondent-driven Sampling Survey()." Int J Drug Policy 2016.