@article{singh_2011,  title={Drug analysis},  volume={47},  ISSN={1984-8250},  url={https://doi.org/10.1590/S1984-82502011000100026},  DOI={10.1590/S1984-82502011000100026},  number={1},  journal={Brazilian Journal of Pharmaceutical Sciences},  publisher={Universidade de São Paulo, Faculdade de Ciências Farmacêuticas},  author={Singh, Anil Kumar},  year={2011},  month={Jan},  pages={194–194} }