@misc{indiciae38b8a6e387dc,
  title = {Maternal age and Down syndrome.},
  author = {M A Ferguson-Smith},
  year = {1978},
  doi = {10.1016/s0140-6736(78)91958-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/78417/},
  note = {Source identifier: 78417}
}