@misc{indiciaeedb49eecc3de,
  title = {Thyroid function in oral contraception: is there cyclic variation?},
  author = {J W Tuttlebee and J T Marsden},
  year = {1983},
  url = {https://pubmed.ncbi.nlm.nih.gov/6841023/},
  note = {Source identifier: 6841023}
}