China's birth defect(出生缺陷)rate (卫计委公布,S印P,2012) Birth defect: A congenital abnormality(先天性 畸形. Not all are detected at birth or even soon after 5.6% 16 million neonates(新生儿)/yr→ 1900000 affected, 270000 visible at birthChina‘s birth defect（出生缺陷）rate （卫计委公布，Sep., 2012） • Birth defect: A congenital abnormality (先天性 畸形). Not all are detected at birth or even soon after. • ~5.6% ~16 million neonates（新生儿）/yr → ~900 000 affected, ~ 270 000 visible at birth