TY  - RPRT
TI  - Chorionic villus sampling: first trimester prenatal diagnosis.
AU  - A T Bombard
AU  - J L Simpson
AU  - S Elias
AU  - A O Martin
DO  - 10.1007/bf02748570
UR  - https://pubmed.ncbi.nlm.nih.gov/3818001/
ID  - 3818001
ER  -