@misc{indiciae113e7cb819c8,
  title = {Relationship among PGR indices.},
  author = {R J Bonier and C Hanley},
  year = {1965},
  doi = {10.1016/0022-3999(65)90053-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5849895/},
  note = {Source identifier: 5849895}
}