@misc{indiciaedeb98eb94805,
  title = {Chorionic villus sampling in first trimester and fetoscopy in second trimester.},
  author = {B Gustavii},
  year = {1987},
  doi = {10.1159/000413453},
  url = {https://pubmed.ncbi.nlm.nih.gov/3556032/},
  note = {Source identifier: 3556032}
}