Maternal serum free beta hCG screening: results of studies including 480 cases of Down syndrome--problems with this approach
- PMID: 7533287
- DOI: 10.1002/pd.1970141116
Maternal serum free beta hCG screening: results of studies including 480 cases of Down syndrome--problems with this approach
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Maternal serum free beta hCG screening: results of studies including 480 cases of Down syndrome.Prenat Diagn. 1994 Feb;14(2):97-103. doi: 10.1002/pd.1970140204. Prenat Diagn. 1994. PMID: 7514291
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