„Chronic caffeine ingestion improves memory and learning and increases neuronal population and dendritic length in the hippocampus of adult mice “ (2021) Nigerian Journal of Physiological Sciences, 36(2), str. 165–172. Dostopno na: https://ojshostng.com/index.php/njphysiologicalsciences/article/view/1640 (Pridobljeno: 5 april 2026).