J. de Souza, Y. Gumiel, L. Oliveira, and C. Moro.
" Named Entity Recognition for Clinical Portuguese Corpus with Conditional Random Fields and Semantic Groups", in <em>Proceedings of the 19th Brazilian Symposium on Computing Applied to Health</em>, Niterói, 2019, pp. 318-323, doi: <a href="https://doi.org/10.5753/sbcas.2019.6269">https://doi.org/10.5753/sbcas.2019.6269</a>.