Fig. 4
From: Harm reduction and viral hepatitis C in European prisons: a cross-sectional survey of 25 countries
Availability and coverage of opioid substitution therapy (OST) programs in European prisons. Green: OST available in all prisons; yellow: OST officially available in all prisons, but low coverage due to additional requirement for abstinence; blue: OST available, but continuation only if treatment was started prior to incarceration; orange: OST available in some prisons; red: OST not available in prisons; gray: not part of the Hep-CORE dataset