@misc{indiciae01a5395a0e15,
  title = {Cervical incompetence and preterm delivery.},
  author = {S D Craigo},
  year = {1996},
  doi = {10.1056/nejm199602293340910},
  url = {https://pubmed.ncbi.nlm.nih.gov/8569830/},
  note = {Source identifier: 8569830}
}