@article{arruda_1996,  title={Treatment of syringomyelia associated with Chiari malformation: analysis of 30 cases},  volume={54},  ISSN={0004-282X},  url={https://doi.org/10.1590/S0004-282X1996000400026},  DOI={10.1590/S0004-282X1996000400026},  number={4},  journal={Arquivos de Neuro-Psiquiatria},  publisher={Academia Brasileira de Neurologia - ABNEURO},  author={Arruda, José Arnaldo Motta de},  year={1996},  month={Dec},  pages={711–711} }