Resolution: standard / high
Figure 3.
The distribution of the duration of drug use (age of respondent minus age at first drug use) in sites with medium and high HIV prevalence (≥ 1%) (Blue boxplots – any drug use, green – injecting drug use among IDU).
Kretzschmar et al. BMC Infectious Diseases 2008 8:108 doi:10.1186/1471-2334-8-108
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