@article{spear_2002,  title={How long should older people take antidepressants to prevent relapse?},  volume={24},  ISSN={1516-4446},  url={https://doi.org/10.1590/S1516-44462002000500013},  DOI={10.1590/S1516-44462002000500013},  journal={Brazilian Journal of Psychiatry},  publisher={Associação Brasileira de Psiquiatria},  author={Spear, Jon},  year={2002},  month={Apr},  pages={70–73} }