Sepúlveda-Arias, J. C., Isaza, C., & Vélez, J. P. (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), 1228–1230. https://doi.org/10.3855/jidc.4525