@article{k. syrjänen2008clinical,
  title={Epidemiological, clinical and viral determinants of the increased prevalence of high-risk human papillomavirus (HPV) infections in elderly women},
  author={k. syrjänen,s.m. kulmala,i. shabalova,n. petrovichev,v. kozachenko,t. zakharova,j. pajanidi,j. podistov,g. chemeris,l. sozaeva,e. lipova,i. tsidaeva,o. ivanchenko,a. pshepurko,s. zakharenko,r. nerovjna,l. kljukina,m. branovskaja,m. nikitina,v. grunjberga,a. grunjberg,a. juschenko,r. santopietro,m. cintorino,p. tosi,s. syrjänen},
  journal={European Journal of Gynaecological Oncology},
  volume={29},
  number={2},
  pages={114--122},
  doi = {10.12892/ejgo200802114},
  year={2008}
}