@misc{10202,
  author = {C. Black and J. Kaye and H. Jick},
  title = {Clinical risk factors for venous thromboembolus in users of the combined oral contraceptive pill},
  year = {2002},
  journal = {Br J Clin Pharmacol},
  volume = {53},
  number = {6},
  pages = {637-40},
  issn = {0306-5251 (Print) 0306-5251},
}