Sepúlveda-Arias, Juan Carlos, Carlos Isaza, and Juan Pablo Vélez. 2014. “Hepatitis B and C Prevalence Among Heroin Addicts in Methadone Maintenance Treatment (MMT) and Not in MMT in Pereira, Colombia”. The Journal of Infection in Developing Countries 8 (09):1228-30. https://doi.org/10.3855/jidc.4525.