@misc{indiciae95e4691944cc,
  title = {The missing umbilical artery. I. Prospective study based on a maternity unit.},
  author = {E M Bryan and H G Kohler},
  year = {1974},
  doi = {10.1136/adc.49.11.844},
  url = {https://pubmed.ncbi.nlm.nih.gov/4474841/},
  note = {Source identifier: 4474841}
}