@misc{indiciae24108b6abd34,
  title = {[New methods in prenatal care].},
  author = {A F GUTTMACHER},
  year = {1957},
  doi = {10.1007/bf00990698},
  url = {https://pubmed.ncbi.nlm.nih.gov/13470939/},
  note = {Source identifier: 13470939}
}