@article{ferrisse_rocha_lança_silveira_almeida_bufalino_león_2021,  title={Post-radiotherapy recurrence of conventional oral squamous cell carcinoma showing sarcomatoid components: an immunohistochemical study},  volume={11},  ISSN={2236-1960},  url={https://doi.org/10.4322/acr.2020.219},  DOI={10.4322/acr.2020.219},  journal={Autopsy and Case Reports},  publisher={Hospital Universitário da Universidade de São Paulo},  author={Ferrisse, Túlio Morandin and Rocha, Audrey Foster Lefort and Lança, Maria Letícia de Almeida and Silveira, Heitor Albergoni and Almeida, Luciana Yamamoto and Bufalino, Andreia and León, Jorge Esquiche},  year={2021},  pages={e2020219} }