TY  - RPRT
TI  - Chorionic villus sampling.
AU  - R J Wapner
PY  - 1997
DO  - 10.1016/s0889-8545(05)70291-6
UR  - https://pubmed.ncbi.nlm.nih.gov/9086520/
ID  - 9086520
ER  -