Ofoefule S, Amanambu C. Comparative Sustained Release Matrix Capacities of some Polymer Matrices in Theophylline Hydrate Tablets . JUST [Internet]. 2016Feb.4 [cited 2024Jul.16];18(2). Available from: https://webapps.knust.edu.gh/just/index.php?journal=just&page=article&op=view&path[]=871