Comparison of urinary free beta (hCG) and beta-core (hCG) in prenatal screening for chromosomal abnormalities

T W Hallahan1, D A Krantz, L Tului

  • 1Research Division, NTD Laboratories, Inc., Huntington Station, NY 11746, USA.

Prenatal Diagnosis
|October 30, 1998
PubMed

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