@article{h.y. sun2017and,
  title={Role and timing of second-line therapies for patients with recurrent platinum-resistant ovarian epithelial cancer},
  author={n.f. liu,y.q. chen,j.l. hu,g.p. chen,t. zhu,j.q. zhu,y. yang,h.y. sun,h. yu},
  journal={European Journal of Gynaecological Oncology},
  volume={38},
  number={2},
  pages={266--270},
  doi = {10.12892/ejgo3537.2017},
  year={2017}
}