Figure 1From: Hepatitis C virus infection among HIV-positive men who have sex with men: protocol for a systematic review and meta-analysis Scope of the systematic review. The figure shows the disease state (blue rectangles), interventions (orange diamonds) and factors influencing state transitions (green ovals) in sexual HCV transmission and natural history of HIV-positive men who have sex with men. HCV, hepatitis C virus; MSM, men who have sex with men.Back to article page