@misc{indiciaef86ba90e7c05,
  title = {ORAL CONTRACEPTIVES.},
  author = {G R VENNING},
  year = {1963},
  doi = {10.1136/bmj.2.5362.935},
  url = {https://pubmed.ncbi.nlm.nih.gov/14067692/},
  note = {Source identifier: 14067692}
}