@misc{indiciae43efe12a4d46,
  title = {Routine obstetric sonography.},
  author = {Roy A Filly and James P Crane},
  year = {2002},
  doi = {10.7863/jum.2002.21.7.713},
  url = {https://pubmed.ncbi.nlm.nih.gov/12099557/},
  note = {Source identifier: 12099557}
}