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. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: Int J Drug Policy. 2018 Nov 29;67:91–101. doi: 10.1016/j.drugpo.2018.09.010

Figure 1: HIV and HCV Cumulative Prevalence by City and Sampling Method (N=1,613).

Figure 1:

Note: Shaded regions represents 95% Confidence Interval estimated by nonparametric bootstrap. The cumulative prevalence is based on unweighted sample proportion of HIV and HCV positive individuals calculated over time leading up to each time point.