@misc{9681,
  author = {M. Bodmer and C. Becker and C. Meier and S. Jick and C. Meier},
  title = {Use of metformin and the risk of ovarian cancer: a case-control analysis},
  year = {2011},
  journal = {Gynecol Oncol},
  volume = {123},
  number = {2},
  pages = {200-4},
  issn = {0090-8258},
  doi = {10.1016/j.ygyno.2011.06.038},
}