@misc{indiciae8543fd23f448,
  title = {New etiological factor in ectopic pregnancy.},
  author = {L KROHN and M H GOTLIB},
  year = {1952},
  doi = {10.1001/jama.1952.03680130023006},
  url = {https://pubmed.ncbi.nlm.nih.gov/12990407/},
  note = {Source identifier: 12990407}
}