TY  - RPRT
TI  - [Chorionic villus sampling (CVS): level of activity and methods to resolve certain difficulties in interpretation].
AU  - C D Delozier-Blanchet
AU  - P Extermann
AU  - M A Morris
AU  - E Engel
PY  - 1989
UR  - https://pubmed.ncbi.nlm.nih.gov/2715784/
ID  - 2715784
ER  -