@misc{indiciae581ebc4df28f,
  title = {A consideration of childbirth programs.},
  author = {W C BILLINGS and H THOMS},
  year = {1956},
  doi = {10.1056/nejm195611012551806},
  url = {https://pubmed.ncbi.nlm.nih.gov/13369729/},
  note = {Source identifier: 13369729}
}