@article{covid19identificationinchestxrayimages,
  title = {COVID-19 identification in chest X-ray images on flat and hierarchical classification scenarios},
  author = {Rodolfo M. Pereira and Diego Bertolini and Lucas O. Teixeira and Carlos N. Silla Jr. and Yandre M. G. Costa},
  year = {2020},
  eprint = {2004.05835},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2004.05835v3},
}