@article{gupta_prakash_mishra_2012,  title={Biodegradable microparticulate drug delivery system of diltiazem HCl},  volume={48},  ISSN={1984-8250},  url={https://doi.org/10.1590/S1984-82502012000400014},  DOI={10.1590/S1984-82502012000400014},  number={4},  journal={Brazilian Journal of Pharmaceutical Sciences},  publisher={Universidade de São Paulo, Faculdade de Ciências Farmacêuticas},  author={Gupta, Manish Kumar and Prakash, Deepak and Mishra, Brahmeshwar},  year={2012},  month={Oct},  pages={699–709} }