@misc{indiciae6a04f9467557,
  title = {INTRAUTERINE RING.},
  author = {E JONES},
  year = {1964},
  doi = {10.1126/science.146.3644.670-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/14191713/},
  note = {Source identifier: 14191713}
}