@article{dong choon park2019adenocarcinoma,
  title={Primary adenocarcinoma with choriocarcinomatous differentiation
of the sigmoid colon misdiagnosed choriocarcinoma of the uterus:
case report and review of the literature},
  author={ha kyun chang,yuki gen,seung geun yeo,ji-han jung,dong choon park},
  journal={European Journal of Gynaecological Oncology},
  volume={40},
  number={3},
  pages={468--470},
  doi = {10.12892/ejgo4416.2019},
  year={2019}
}