@article{d. couto2004value,
  title={Diagnostic value of ultrasound and color Doppler in identifying axillary lymph node metastases in patients with breast cancer},
  author={d. couto,m. dias,m. goncalo,e. pinto,c.f. de oliveira},
  journal={European Journal of Gynaecological Oncology},
  volume={25},
  number={5},
  pages={568--570},
  doi = {10.12892/ejgo200405568},
  year={2004}
}