Noninvasive test for trisomy 21 closer at hand

Thursday, February 10, 2011 - 10:01 in Health & Medicine

St. Louis, MO, February 10, 2011 -- In 1980 in the United States, approximately 4.5% of all pregnant women were of advanced maternal age. By 2007 that figure had increased to 14%. Women over 35 are...

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