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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.

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