El Sheikou, Hawker Omran, Naif Ali Ghanem, and Hazem Hassan. “Standard Criteria for Writing a Calendar Study As a Randomized Controlled Study”. Journal of medical and pharmaceutical sciences 2, no. 3 (September 30, 2018): 33–11. Accessed January 24, 2026. https://journals.ajsrp.com/index.php/jmps/article/view/927.