@article{nagai_1999,  title={Genetic alterations in head and neck squamous cell carcinomas},  volume={32},  ISSN={0100-879X},  url={https://doi.org/10.1590/S0100-879X1999000700015},  DOI={10.1590/S0100-879X1999000700015},  number={7},  journal={Brazilian Journal of Medical and Biological Research},  publisher={Associação Brasileira de Divulgação Científica},  author={Nagai, M.A.},  year={1999},  month={Jul},  pages={897–904} }