Correction: Usability, acceptability, and self-reported impact of an innovative hepatitis C risk reduction intervention for men have sex with men: A mixed methods study

• Tamara Prinsenberg, 
• Joël Illidge, 
• Paul Zantkuijl, 
• Maarten Bedert, 
• Maria Prins, 
• Marc van de r Valk, 
• Udi Davidovich