@misc{indiciae3e531b5cbdd6,
  title = {Childbirth education certification: who needs it?},
  author = {C S Cranston},
  doi = {10.1016/0091-2182(79)90079-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/255596/},
  note = {Source identifier: 255596}
}