@misc{indiciae0d8361b7cad4,
  title = {Effect of prolonged cyclic therapy with estrogen-progestin combinations on thyroid function.},
  author = {R R Margulis and R Leach},
  year = {1967},
  doi = {10.1016/0002-9378(67)90316-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4166956/},
  note = {Source identifier: 4166956}
}