@article{m. wang2011analysis,
  title={Multivariate analysis by Cox proportional hazard model on prognosis of patient with epithelial ovarian cancer},
  author={m. wang,y. he,l. shi,c. shi},
  journal={European Journal of Gynaecological Oncology},
  volume={32},
  number={2},
  pages={171--177},
  doi = {10.12892/ejgo201102171},
  year={2011}
}