@article{k. syrjj anen2005predicting,
  title={Factors predicting persistence of high-risk human papillomavirus (HPV) infections in women prospectively followed-up in three New Independent States (NIS)*  of the former Soviet Union},
  author={s. syrjanen,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,o. erokhina,m. branovskaja,m. nikitina,v. grunberga,a. grunberg,a. juschenko,m. cintorino,r. s antopietro,p. tosi,k. syrjj anen},
  journal={European Journal of Gynaecological Oncology},
  volume={26},
  number={5},
  pages={491--498},
  doi = {10.12892/ejgo200505491},
  year={2005}
}