@article{nascimento_ribeiro-dias_russo_1998,  title={Cytotoxic activity of BCG-activated macrophages against L929 tumor cells is nitric oxide-dependent},  volume={31},  ISSN={0100-879X},  url={https://doi.org/10.1590/S0100-879X1998001200012},  DOI={10.1590/S0100-879X1998001200012},  number={12},  journal={Brazilian Journal of Medical and Biological Research},  publisher={Associação Brasileira de Divulgação Científica},  author={Nascimento, F.R.F. and Ribeiro-Dias, F. and Russo, M.},  year={1998},  month={Dec},  pages={1595–1596} }