@misc{indiciaee80e126bb046,
  title = {Screening for Down's syndrome.},
  author = {R M Keatinge and E S Williams},
  year = {1991},
  doi = {10.1136/bmj.303.6809.1063},
  url = {https://pubmed.ncbi.nlm.nih.gov/1835415/},
  note = {Source identifier: 1835415}
}