@article{porwal_dwivedi_pathak_2017,  title={Decades of research in drug targeting using gastroretentive drug delivery systems for antihypertensive therapy},  volume={53},  ISSN={1984-8250},  url={https://doi.org/10.1590/s2175-97902017000300173},  DOI={10.1590/s2175-97902017000300173},  number={3},  journal={Brazilian Journal of Pharmaceutical Sciences},  publisher={Universidade de São Paulo, Faculdade de Ciências Farmacêuticas},  author={Porwal, Amit and Dwivedi, Harinath and Pathak, Kamla},  year={2017},  pages={e00173} }