TY  - RPRT
TI  - Chorionic villi sampling under direct vision.
AU  - B Gustavii
PY  - 1984
DO  - 10.1111/j.1399-0004.1984.tb01062.x
UR  - https://pubmed.ncbi.nlm.nih.gov/6499244/
ID  - 6499244
ER  -