TY  - RPRT
TI  - Chorionic villi sampling changes maternal serum alpha-fetoprotein.
AU  - F G Mariona
AU  - R Bhatia
AU  - F N Syner
AU  - F Koppitch
DO  - 10.1002/pd.1970060110
UR  - https://pubmed.ncbi.nlm.nih.gov/2419892/
ID  - 2419892
ER  -