@article{w. du2015surgery,
  title={Endoscopic surgery combining chemotherapy for vaginal yolk-sac tumor: a case report},
  author={x. fang,w. du,q. wang,x. zhao},
  journal={European Journal of Gynaecological Oncology},
  volume={36},
  number={3},
  pages={335--338},
  doi = {10.12892/ejgo2658.2015},
  year={2015}
}