Bashir, Shahid, Ghulam Murtaza, Sultan Ayoub Meo, and Abeer Al-Masri. “Effect of Cigarette and Shisha Smoking on Cognitive Functions Impairment: A Cross Sectional Study”. Pakistan Journal of Medical Sciences 36, no. 5 (June 27, 2020). Accessed March 28, 2024. https://www.pjms.org.pk/index.php/pjms/article/view/2251.