@article{article103,
  title = {The Use of Letrozole for Ovulation Induction in Infertile Women with Polycystic Ovarian Syndrome},
  author = {Aygen, E.M. and Güzel, Z. and Özgün, T. and Atakul, T. and Şahin, Y.},
  journal = {Journal of Clinical Practice and Research},
  year = {2007},
  volume = {29},
  pages = {195-200},
  doi = {}
}