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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Test markers:<br />
AFP + freeβHCG<br />
Methods<br />
About half of the facilities adopted the<br />
technique of time resolved fluorescence<br />
immunassay (TRFIA)<br />
other techniques such as ELISA, GIA also<br />
be<strong>in</strong>g used <strong>in</strong> Ch<strong>in</strong>a.