@misc{indiciae6cd7eb02f125,
  title = {Voluntary sterilization.},
  author = {C P Blacker},
  year = {1970},
  doi = {10.1136/bmj.1.5694.499-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/5435166/},
  note = {Source identifier: 5435166}
}