@misc{indiciae2f12e84b4eed,
  title = {Second-trimester CA 125 and Down's syndrome.},
  author = {K Spencer},
  year = {1993},
  doi = {10.1002/pd.1970130816},
  url = {https://pubmed.ncbi.nlm.nih.gov/8284298/},
  note = {Source identifier: 8284298}
}