@misc{indiciae281f5dd56c4e,
  title = {Five years' experience with contraceptive pills; cervical epithelial changes.},
  author = {M S Chai and W D Johnson and V Tricomi},
  year = {1970},
  url = {https://pubmed.ncbi.nlm.nih.gov/5273149/},
  note = {Source identifier: 5273149}
}