@article{m. karaca2007the,
  title={Does the copper intrauterine device affect serum cancer antigen 125 levels? },
  author={m. karaca,s. kumru,n. dikmeli},
  journal={European Journal of Gynaecological Oncology},
  volume={28},
  number={6},
  pages={524--525},
  doi = {10.12892/ejgo200706524},
  year={2007}
}