Fortunately, if you're at risk of sudden death, there are screening tests to see if you have a heart defect, and precautions you can take to protect your heart.
幸运的是，如果说你有猝死的危险，你可以通过测试知道你是否有心脏上的缺陷，以及了解一些保护心脏的措施。
Objective: To explore the practical value of Down's screening and antenatal diagnosis in preventing and decreasing chromosomal disease and congenital birth defect.
目的：探讨唐氏筛查及产前诊断在预防和减少染色体病及先天缺陷儿出生的实用价值。
Imported defect is one of key parameters in the quantified environment stress screening.
引入缺陷是定量环境应力筛选的关键参数之一。
Prenatal Screening can be helpful to lower birth defect and improve the quality of the new born.
产前筛查有助于降低缺陷儿出生，提高出生人口质量。
It is intended for screening purposes rather than for the in-depth study of a color vision defect.
它只是用来说明显示的目的，而不是用来深入研究彩色视觉的缺陷。
It is intended for screening purposes rather than for the in-depth study of a color vision defect.
它只是用来说明显示的目的，而不是用来深入研究彩色视觉的缺陷。
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