Mohamed M. Abd El-Mawgod, Hashem H A, Yahia Abdelgawad Elsayed Elboraei. Primary Headache among University Students: Across Sectional Study. Pakistan Journal of Medical & Health Sciences [Internet]. 2022 Apr. 17 [cited 2025 Apr. 15];16(03):421. Available from: https://mail.pjmhsonline.com/index.php/pjmhs/article/view/492