[Investigation on birth defects in 8285 perinatal infants].
Peng
Xiao-Lin
XL
D000328:Adult; D002681:China / Q000453:epidemiology; D000013:Congenital Abnormalities / Q000453:epidemiology*; D005260:Female; D006801:Humans; D015994:Incidence; D007231:Infant, Newborn; D008423:Maternal Age; D011247:Pregnancy; D013997:Time Factors