@article{s.y. hur2011case,
  title={A case of bilateral ovarian synchronous tumors (left ovarian serous papillary adenocarcinoma and rightovarian malignant mixed Müllerian tumor)},
  author={m.j. song,c.w. lee,k.j. seo,j.a. kim,j.s. park,s.y. hur},
  journal={European Journal of Gynaecological Oncology},
  volume={32},
  number={2},
  pages={234--236},
  doi = {10.12892/ejgo201102234},
  year={2011}
}