@article{shun-li zhang2021p16,
  title={Methylated p16 gene is associated with negative expression of estrogen receptor, progesterone receptor and human epidermal growth factor receptor 2 in breast cancer},
  author={shun-li zhang,ya-qi wang,jing-hua zhang,ji-wei hu,jie ma,zheng gu,yu wang,jing-jing chen},
  journal={European Journal of Gynaecological Oncology},
  volume={42},
  number={3},
  pages={530--536},
  doi = {10.31083/j.ejgo.2021.03.2173},
  year={2021}
}