@misc{indiciaea891fb432e3b,
  title = {First-trimester Down syndrome screening: component analytes and timing for optimal performance.},
  author = {Katharine D Wenstrom},
  year = {2005},
  doi = {10.1053/j.semperi.2005.06.002},
  url = {https://pubmed.ncbi.nlm.nih.gov/16104668/},
  note = {Source identifier: 16104668}
}