Colzato, L.S., Ruiz, M.J., van den Wildenberg, W.P.M., & Hommel, B. (2011). Khat use is associated with impaired working memory and cognitive flexibility. PLoS ONE, 6. https://doi.org/10.1371/journal.pone.0020602
Colzato, L.S., Ruiz, M.J., van den Wildenberg, W.P.M., & Hommel, B. (2011). Khat use is associated with impaired working memory and cognitive flexibility. PLoS ONE, 6. https://doi.org/10.1371/journal.pone.0020602