@misc{indiciaec7e361b86ab2,
  title = {First trimester screening: the BUN study.},
  author = {Ronald J Wapner},
  year = {2005},
  doi = {10.1053/j.semperi.2005.05.013},
  url = {https://pubmed.ncbi.nlm.nih.gov/16104674/},
  note = {Source identifier: 16104674}
}