@article{l. elit2002factors,
  title={Risk factors for ovarian cancer and early-onset breast cancer in Mongolia},
  author={l. elit,g. baigal,e. jack,a. munkhtaivan,s. a. narod},
  journal={European Journal of Gynaecological Oncology},
  volume={23},
  number={5},
  pages={397--400},
  doi = {10.12892/ejgo200205397},
  year={2002}
}