Himmat Singh Chawra, Y. S. Tanwar, Ritu M. Gilhotra, & S. K. Singh. (2018). Gastroretentive drug delivery systems a potential approach for antihypertensive drugs: An updated review. Asian Pacific Journal of Health Sciences, 5(2), 217–223. https://doi.org/10.21276/apjhs.2018.5.2.40