@article{yang chu2020systematic,
  title={A systematic review and meta-analysis on the effects of metformin on survival outcomes and risk in women with cervical cancer},
  author={yi-fan luo,li-xiang ren,ming-yan jiang,yang chu},
  journal={European Journal of Gynaecological Oncology},
  volume={41},
  number={4},
  pages={504--507},
  doi = {10.31083/j.ejgo.2020.04.5192},
  year={2020}
}