@article{g. de palo2004precancer,
  title={Cervical precancer and cancer, past, present and future},
  author={g. de palo},
  journal={European Journal of Gynaecological Oncology},
  volume={25},
  number={3},
  pages={269--278},
  doi = {10.12892/ejgo200403269},
  year={2004}
}