@misc{indiciae6edb2b6cea5c,
  title = {Prenatal screening vouchers.},
  author = {R J Lilford and J G Thornton},
  year = {1996},
  doi = {10.1177/014107689608900304},
  url = {https://pubmed.ncbi.nlm.nih.gov/8683514/},
  note = {Source identifier: 8683514}
}