@article{b. piura2014metastases,
  title={Brain metastases from gestational trophoblastic neoplasia: review of pertinent literature},
  author={e. piura,b. piura},
  journal={European Journal of Gynaecological Oncology},
  volume={35},
  number={4},
  pages={359--367},
  doi = {10.12892/ejgo26312014},
  year={2014}
}