@article{elkis_2001,  title={Clozapina, esquizofrenia refratária e evidências},  volume={23},  ISSN={1516-4446},  url={https://doi.org/10.1590/S1516-44462001000200002},  DOI={10.1590/S1516-44462001000200002},  number={2},  journal={Brazilian Journal of Psychiatry},  publisher={Associação Brasileira de Psiquiatria},  author={Elkis, Helio},  year={2001},  month={Jun},  pages={59–60} }