@misc{indiciaecf3ae2b192a7,
  title = {First-trimester screening.},
  author = {David A Nyberg and Jon Hyett and Jo-Ann Johnson and Vivienne Souter},
  year = {2006},
  doi = {10.1016/j.rcl.2006.10.017},
  url = {https://pubmed.ncbi.nlm.nih.gov/17147989/},
  note = {Source identifier: 17147989}
}