@misc{indiciae6fe6856e66ed,
  title = {Contingent screening for Down syndrome.},
  author = {Anne M Summers and Tianhua Huang and Chris Meier and Sandra A Farrell},
  year = {2005},
  doi = {10.1002/pd.1245},
  url = {https://pubmed.ncbi.nlm.nih.gov/16193459/},
  note = {Source identifier: 16193459}
}