@article{abaroa_rodríguez-quiroga_melamud_arakaki_garretto_villa_2013,  title={Tonic spasms are a common clinical manifestation in patients with neuromyelitis optica},  volume={71},  ISSN={0004-282X},  url={https://doi.org/10.1590/0004-282X20130021},  DOI={10.1590/0004-282X20130021},  number={5},  journal={Arquivos de Neuro-Psiquiatria},  publisher={Academia Brasileira de Neurologia - ABNEURO},  author={Abaroa, Luz and Rodríguez-Quiroga, Sergio A. and Melamud, Luciana and Arakaki, Tomoko and Garretto, Nelida S. and Villa, Andres M.},  year={2013},  month={May},  pages={280–283} }