@misc{indiciae4181c59786e2,
  title = {Antenatal screening for Down syndrome.},
  author = {N Wald and H Cuckle and P Royston},
  year = {1988},
  doi = {10.1016/s0140-6736(88)90891-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/2904069/},
  note = {Source identifier: 2904069}
}