@misc{indiciaed2e0efa69323,
  title = {Preventing preterm birth.},
  author = {R K Creasy},
  year = {1991},
  doi = {10.1056/nejm199109053251009},
  url = {https://pubmed.ncbi.nlm.nih.gov/1870643/},
  note = {Source identifier: 1870643}
}