@article{dabao wu2019case,
  title={A case of placental site trophoblastic tumor and a retrospective analysis},
  author={yangyang shi,yongyun shi,dabao wu},
  journal={European Journal of Gynaecological Oncology},
  volume={40},
  number={6},
  pages={1096--1099},
  doi = {10.12892/ejgo4817.2019},
  year={2019}
}