TY  - RPRT
TI  - Prenatal diagnosis: practice, pitfalls, and progress.
AU  - M L Pernoll
AU  - G H Prescott
AU  - F Hecht
AU  - C L Olson
PY  - 1974
UR  - https://pubmed.ncbi.nlm.nih.gov/4607620/
ID  - 4607620
ER  -