Salman, T., Nawaz, S., Ikram, H., & Haleem, D. (2019). Enhancement and impairment of cognitive behaviour in Morris water maze test by methylphenidate to rats. Pakistan Journal of Pharmaceutical Sciences, 32(3), 899-903.

Saeed, R., Mahmood, K., Ali, S., & Haleem, D. (2021). Prevention of diet restriction induced hyperactivity but not body-weight reduction in rats co-treated with tryptophan: relationship with striatal serotonin and dopamine metabolism and serotonin-1A auto-receptor expression. Nutritional Neuroscience, 1-10. https://doi.org/10.1080/1028415X.2021.1901046 (Original work published 2021)