出生缺陷是影响人口出生质量最重要的因素。
Birth defect is one of the key elements that seriously affect the quality of population.
提高人口出生质量，降低围产儿与孕妇的死亡率是妇幼保健工作的一项重要任务。
Enhance quantity of borned child, lower the death rate of pregnant woman and newborn child is an important mission of woman and child health care.
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