@misc{indiciaefd94bd2bee50,
  title = {Chorion villus sampling and randomisation.},
  author = {I Z MacKenzie and P Boyd and J Ferguson},
  year = {1986},
  doi = {10.1016/s0140-6736(86)91066-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/2871259/},
  note = {Source identifier: 2871259}
}