@misc{indiciae66d4be26df19,
  title = {Ultrasonography and external cephalic version at term.},
  author = {W L Donald and J J Barton},
  year = {1990},
  doi = {10.1016/0002-9378(90)90918-w},
  url = {https://pubmed.ncbi.nlm.nih.gov/2193517/},
  note = {Source identifier: 2193517}
}