@article{w.m. mao2017and,
  title={Expression and association of reproductive hormones and receptors in postmenopausal patients with breast cancer},
  author={d.h. zou,x.m. he,b. chen,x.h. xu,x.p. zhang,j.f. ni,w.m. mao},
  journal={European Journal of Gynaecological Oncology},
  volume={38},
  number={5},
  pages={727--732},
  doi = {10.12892/ejgo3694.2017},
  year={2017}
}