@misc{indiciae2ab308b70ab1,
  title = {Screening for Down syndrome.},
  author = {R W Oliver and R P Ager},
  year = {1988},
  doi = {10.1016/s0140-6736(88)91515-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/2451099/},
  note = {Source identifier: 2451099}
}