@misc{indiciae0898c0f5b3e8,
  title = {Commentary: Down's syndrome and parity.},
  author = {R J Lilford},
  year = {1997},
  doi = {10.1136/bmj.314.7082.721},
  url = {https://pubmed.ncbi.nlm.nih.gov/9116550/},
  note = {Source identifier: 9116550}
}