Al-anbagi, M.S., Rajab , N.A., Aljodah, M.A.-A. and Al-Attar, Z. 2022. Preparation and Characterization of Sumatriptan Timed Delivery System Using Combination of Natural and Synthetic Polymers. Open Access Macedonian Journal of Medical Sciences. 10, A (Feb. 2022), 432–443. DOI:https://doi.org/10.3889/oamjms.2022.8358.