@misc{indiciaefd9a108f9eea,
  title = {Ultrasonography before abortion?},
  author = {J J Crittenden},
  year = {1981},
  doi = {10.1001/jama.1981.03320100024014},
  url = {https://pubmed.ncbi.nlm.nih.gov/7265392/},
  note = {Source identifier: 7265392}
}