@misc{indiciaeed50cfd422a7,
  title = {[Proceedings: A new obstetrical medical record for documentation and data processing].},
  author = {M Hamacher and N Lang},
  year = {1973},
  doi = {10.1007/bf00671218},
  url = {https://pubmed.ncbi.nlm.nih.gov/4801519/},
  note = {Source identifier: 4801519}
}