@misc{indiciaec75030fa76be,
  title = {Practising prevention. Contraception.},
  author = {M J Bull},
  year = {1982},
  doi = {10.1136/bmj.284.6328.1535},
  url = {https://pubmed.ncbi.nlm.nih.gov/6805595/},
  note = {Source identifier: 6805595}
}