@article{a. kwasniewska 2002of,
  title={Content of folic acid and free homocysteine in blood  serum of human papillomavirus-infected women  with cervical dysplasia},
  author={a. kwasniewska ,a. tukendorf,a. goidzicka-jozefiak,a. semczuk-sikora,e. korobowicz},
  journal={European Journal of Gynaecological Oncology},
  volume={23},
  number={4},
  pages={311--316},
  doi = {10.12892/ejgo200204311},
  year={2002}
}