Kakar, Amanullah, Wazir Akbar, Riaz Ahmed, Ainullah Kakar, and Muhammad Essa. “Comparative Efficacy of Modafinil and Methylphenidate in Managing Excessive Daytime Sleepiness in Parkinson’s Disease: Results from a Randomized Controlled Trial”. Indus Journal of Bioscience Research 3, no. 5 (May 30, 2025): 741–748. Accessed May 31, 2026. https://ijbr.com.pk/IJBR/article/view/1497.