อัปโหลดแล้ว 3 ปี ก่อนหน้านี้
CVS DNA Test is usually performed between 10 and 12 weeks of gestation period. Unlike amniocentesis, this test does not give information on neural tube defects, such as the “spina bifida” condition. Because of this, women who choose the CVS technique are also required to have a follow-up blood test which is done between the 16th and 18th weeks of pregnancy to screen for neural tube defects.
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