Sheikh, Naveen Siddique, Massiha Gulzar Ahmed, Nayab Masood, Nayab Munir Malik, Huma Saeed Khan, and Shahid Hasan. “Sleep Deprivation and Extraocular Muscles: A Cross Sectional Study”. Pakistan Journal of Physiology 16, no. 1 (March 31, 2020): 20–23. Accessed April 19, 2024. https://pjp.pps.org.pk/index.php/PJP/article/view/1174.