Ahmad, U.; Sami, A. J. .; Noreen, S.; Hussain, U. .; Khalid, T.; Abdullah, M. . A PH-Responsive Psyllium-Hyaluronic Acid and Collagen Based Hydrogel for Oral Insulin Delivery: PH-Responsive Hydrogel for Oral Insulin Delivery. PJHS-Lahore 2023, 4, 17-24.