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研究出生缺陷的形成因素及预防,是提高人口素质当前和长远的需要。出生缺陷是由遗传和环境两方面因素造成的。Wilson(1977)综合五次国际出生缺陷的资料,分析其病因,遗传因素占25％(单基因遗传占20％,染色体畸变占3～5％),环境因素占10％
To study the formation and prevention of birth defects is to improve the current and long-term needs of the population quality. Birth defects are caused by both genetic and environmental factors. Wilson (1977) analyzed five causes of international birth defects and analyzed their etiology. Genetic factors accounted for 25% (20% for single-gene inheritance and 3 to 5% for chromosomal aberrations) and 10% for environmental factors