@article{w. ling2015infection,
  title={HPV16 infection up-regulates Piwil2, which affects cell proliferation and invasion in cervical cancer by regulating MMP-9 via the MAPK pathway},
  author={w. ling,h. zhigang,h. tian,z. bin,x. xiaolin,z. hongxiu},
  journal={European Journal of Gynaecological Oncology},
  volume={36},
  number={6},
  pages={647--654},
  doi = {10.12892/ejgo2666.2015},
  year={2015}
}