@misc{indiciae4f7b104ab861,
  title = {Estimating gestational age from biparietal diameter: a simple formula.},
  author = {F C Laing and W M Stevenson},
  year = {1986},
  doi = {10.7863/jum.1986.5.1.44},
  url = {https://pubmed.ncbi.nlm.nih.gov/3944845/},
  note = {Source identifier: 3944845}
}