@article{engelman_andrade_vassallo_2003,  title={Human papillomavirus infection and p53 protein expression in vulvar intraepithelial neoplasia and invasive squamous cell carcinoma},  volume={36},  ISSN={0100-879X},  url={https://doi.org/10.1590/S0100-879X2003000900003},  DOI={10.1590/S0100-879X2003000900003},  number={9},  journal={Brazilian Journal of Medical and Biological Research},  publisher={Associação Brasileira de Divulgação Científica},  author={Engelman, D.E.S. and Andrade, L.A.L.A. and Vassallo, J.},  year={2003},  month={Sep},  pages={1159–1165} }