TY  - RPRT
TI  - Prenatal diagnosis: a problem in verification.
AU  - G Kohn
AU  - A Ornoy
AU  - M M Cohen
PY  - 1974
DO  - 10.1136/jmg.11.3.247
UR  - https://pubmed.ncbi.nlm.nih.gov/4431030/
ID  - 4431030
ER  -