Feit, J., Gorzelańczyk, E.J., Mrówczyńska, E., Nowińska, E. and Pasgreta, K. 2012. Effect of a single dose of methadone on the functioning of visuo-spatial working memory in opiate dependent individuals with HIV(+) treated with methadone. Medical and Biological Sciences. 26, 2 (Jun. 2012), 5–9. DOI:https://doi.org/10.12775/v10251-012-0028-4.