@misc{indiciae52837eb5a799,
  title = {An ante-natal record card for use in developing countries.},
  author = {V J Hartfield},
  year = {1973},
  doi = {10.1177/004947557300300407},
  url = {https://pubmed.ncbi.nlm.nih.gov/4745121/},
  note = {Source identifier: 4745121}
}