@misc{indiciaef27041b949bd,
  title = {Chorionic villi sampling changes maternal serum alpha-fetoprotein.},
  author = {F G Mariona and R Bhatia and F N Syner and F Koppitch},
  doi = {10.1002/pd.1970060110},
  url = {https://pubmed.ncbi.nlm.nih.gov/2419892/},
  note = {Source identifier: 2419892}
}