原帖由 眉心眉飞 于 2008-6-5 11:04 发表 ) r$ v$ u3 E* b4 |# @( h! j
triple blood screening:3 Y R7 \' e1 U
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A triple screen is a blood test that measures three things called alpha-fetoprotein, human chorionic gonadotropin and unconjugated estriol. The results of the blood test can ...