@misc{indiciae87151921e9dd,
  title = {Conditioning for childbirth.},
  author = {C TUPPER},
  year = {1956},
  doi = {10.1016/0002-9378(56)90566-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/13302306/},
  note = {Source identifier: 13302306}
}