Mekonnen N, Makonnen E, Gebre-Tsadik K. Behavioural changes and development of tolerance to repeated administration of khat (Catha edulis Forsk) in mice. EJHD [Internet]. 2017Mar.28 [cited 2024May7];12(3). Available from: https://ejhd.org/index.php/ejhd/article/view/986