@article{a. markowska2019of,
  title={Effect of metformin on clinical-pathological variables in women with endometrial cancer. A multicenter study},
  author={s. sajdak,a. markowska,j. krygowska-zielińska,m. szarszewska,a. witek,a. olejek,d. haidopoulos,w. sawicki,b. więckowska,j. markowska},
  journal={European Journal of Gynaecological Oncology},
  volume={40},
  number={5},
  pages={775--780},
  doi = {10.12892/ejgo4835.2019},
  year={2019}
}