@article{r. halperin2002papillary,
  title={Uterine papillary serous carcinoma (pure and mixed type) compared with moderately and poorly differentiated endometrioid carcinoma. A clinicopathologic study},
  author={r. halperin,s. zehavi,r. langer,e. hadas,i. bukovsky,d. schneider},
  journal={European Journal of Gynaecological Oncology},
  volume={23},
  number={4},
  pages={300--304},
  doi = {10.12892/ejgo200204300},
  year={2002}
}