@misc{indiciaec08e92c1b7ee,
  title = {Factors governing IUD performance.},
  author = {R P Bernard},
  year = {1971},
  doi = {10.2105/ajph.61.3.559},
  url = {https://pubmed.ncbi.nlm.nih.gov/5553645/},
  note = {Source identifier: 5553645}
}