@article{z.y. yu2015analysis,
  title={Correlation analysis of hormone receptors and the expressions of HER-2 and Ki-67 in breast cancer},
  author={q. liu,x.z. wang,d.b. mu,d.b. mu,y.s. liu,z.y. yu},
  journal={European Journal of Gynaecological Oncology},
  volume={36},
  number={1},
  pages={78--83},
  doi = {10.12892/ejgo2603.2015},
  year={2015}
}