@misc{indiciae1ee955ca9769,
  title = {Risk estimation in Down's syndrome screening.},
  author = {N J Wald and A K Hackshaw},
  year = {1996},
  doi = {10.1002/(sici)1097-0223(199611)16:11<1055::aid-pd990>3.0.co;2-b},
  url = {https://pubmed.ncbi.nlm.nih.gov/8953642/},
  note = {Source identifier: 8953642}
}