@article{d. mantas2012variation,
  title={Seasonal variation in breast cancer incidence. Circumstantial or default event?},
  author={c. markopoulos,d. mantas,e. kouskos,z. antonopoulou},
  journal={European Journal of Gynaecological Oncology},
  volume={33},
  number={5},
  pages={521--523},
  doi = {10.12892/ejgo201205521},
  year={2012}
}