@article{ferreira_chaves_moraes_oliveira_1981,  title={Tumores raqueanos: a proposito de 100 casos},  volume={39},  ISSN={0004-282X},  url={https://doi.org/10.1590/S0004-282X1981000100003},  DOI={10.1590/S0004-282X1981000100003},  number={1},  journal={Arquivos de Neuro-Psiquiatria},  publisher={Academia Brasileira de Neurologia - ABNEURO},  author={Ferreira, Nelson Pires and Chaves, Daniel Loureiro and Moraes, Ailton da Costa and Oliveira, Leda Maria de},  year={1981},  month={Mar},  pages={25–31} }