@article{chiharu mizoguchi2020tumour,
  title={Collision tumour of endometrial stromal sarcoma, uterine tumour resembling ovarian sex-cord tumour, and leiomyoma},
  author={chiharu mizoguchi,harunobu matsumoto,kaei nasu,kentaro kai,motoki arakane,hisashi narahara},
  journal={European Journal of Gynaecological Oncology},
  volume={41},
  number={4},
  pages={634--637},
  doi = {10.31083/j.ejgo.2020.04.3936},
  year={2020}
}