@misc{indiciae598c929729a6,
  title = {Intrauterine devices.},
  author = {P A Corfman and S Segal},
  year = {1967},
  doi = {10.1126/science.156.3778.1136},
  url = {https://pubmed.ncbi.nlm.nih.gov/6067239/},
  note = {Source identifier: 6067239}
}