The next step in improving the current test will include analysis of DNA from direct chorionic villus sampling or amniotic fluid to further reduce the TAT.
接下来，进一步减少TAT的改进措施包括从绒毛膜绒毛或羊水直接取样用于DNA分析。
Methods 104 chorionic tissue and 494 amniotic fluid were determind by ELISA and mouse inoculation methods.
方法用ELISA法和小白鼠腹腔培养法，对104份绒毛和494份羊水进行了检测。
Methods 104 chorionic tissue and 494 amniotic fluid were determind by ELISA and mouse inoculation methods.
方法用ELISA法和小白鼠腹腔培养法，对104份绒毛和494份羊水进行了检测。
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