@misc{indiciae89106a3e0a4c,
  title = {[Prenatal screening for Down's syndrome: a simplified method].},
  author = {P Cavalli and G Zacchè and S Montagna and P Colombani and B Morrica and G L Romanini},
  year = {1993},
  url = {https://pubmed.ncbi.nlm.nih.gov/8255499/},
  note = {Source identifier: 8255499}
}