@misc{indiciaec19198834a3e,
  title = {Serum screening for Down's syndrome.},
  author = {J Bibby and M J McCormack},
  year = {1994},
  doi = {10.1111/j.1471-0528.1994.tb13167.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/7517183/},
  note = {Source identifier: 7517183}
}