TY  - RPRT
TI  - Chorionic villus sampling.
AU  - J McCormack
AU  - W E MacKenzie
PY  - 1990
DO  - 10.1016/0140-6736(90)93442-r
UR  - https://pubmed.ncbi.nlm.nih.gov/1975414/
ID  - 1975414
ER  -