In11-13+ 6 weeks, fetal nuchal translucency ( NT) thickness has become an important index of down's syndrome of early pregnancy screening.

  • 孕11-13+6周胎儿颈项透明层(NT)厚度已经成为早孕期筛查唐氏综合征的重要指标。

  • 互联网摘选 2025-01-20 13:13:28

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