Second trimester maternal serum screening test in China
Second trimester maternal serum screening test in China
Second trimester maternal serum screening test in China
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False negative case<br />
41 years old, risk of 1/280, amniocentesis still<br />
done, the fetal karyotype: trisomy 21<br />
36 years old, risk of 1/1100, amniocentesis still<br />
done ,the fetal karyotype: trisomy 18<br />
33 years old,low risk,B-us showed miltiple<br />
malformation,TOP refused, karyotype of the<br />
neonate: trisomy 18
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