@misc{indiciaeb1a9b0cad0d7,
  title = {Risk scoring for preterm labor: where do we go from here?},
  author = {D M Main and S G Gabbe},
  year = {1987},
  doi = {10.1016/s0002-9378(87)80056-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/3674151/},
  note = {Source identifier: 3674151}
}