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每年的9月12日是我国的预防出生缺陷日。出生缺陷是指婴儿出生时就存在各种身体结构、智力或代谢方面的异常。出生缺陷的发生是多种因素
Every year on September 12 is China’s birth defect prevention day. Birth defects refer to the various physical structures, mental or metabolic abnormalities that occur at birth. Birth defects are many factors