Patil R, Jat RK. Formulation and Evaluation of Matrix tablets containing Chitosan Based Polyelectrolyte Complex with Natural Gum for Prolonged Release of Diltiazem HCl. J. Drug Delivery Ther. [Internet]. 2019 Aug. 15 [cited 2026 Jan. 30];9(4-s):22-31. Available from: https://www.jddtonline.info/index.php/jddt/article/view/3242