@misc{indiciaed0856a94d81f,
  title = {System for predicting spontaneous preterm birth.},
  author = {R K Creasy and B A Gummer and G C Liggins},
  year = {1980},
  url = {https://pubmed.ncbi.nlm.nih.gov/7383454/},
  note = {Source identifier: 7383454}
}