@misc{indiciae304308186ead,
  title = {Amniocentesis needle with improved sonographic visibility.},
  author = {S R Hurwitz and M P Nageotte},
  year = {1989},
  doi = {10.1148/radiology.171.2.2649929},
  url = {https://pubmed.ncbi.nlm.nih.gov/2649929/},
  note = {Source identifier: 2649929}
}