@misc{indiciae225bf379d53d,
  title = {A Copper 7 IUCD with no copper.},
  author = {M Pollock},
  year = {1979},
  doi = {10.1136/bmj.1.6177.1564},
  url = {https://pubmed.ncbi.nlm.nih.gov/466122/},
  note = {Source identifier: 466122}
}