TY  - RPRT
TI  - Limb defects and gestational age at chorionic villus sampling.
AU  - R S Olney
AU  - M J Khoury
AU  - L D Botto
AU  - P Mastroiacovo
PY  - 1994
DO  - 10.1016/s0140-6736(94)91808-2
UR  - https://pubmed.ncbi.nlm.nih.gov/7914585/
ID  - 7914585
ER  -