@misc{indiciae5dc15e95200c,
  title = {Placentography by sonar.},
  author = {I Donald and U Abdulla},
  year = {1968},
  doi = {10.1111/j.1471-0528.1968.tb02871.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5684427/},
  note = {Source identifier: 5684427}
}