Population-based Birth Defects Surveillance data from selected states, 2001-2005.
D000013:Congenital Abnormalities / Q000175:diagnosis / Q000453:epidemiology*; D003625:Data Collection / Q000706:statistics & numerical data*; D006801:Humans; D011159:Population Surveillance; D015995:Prevalence; D013997:Time Factors; D014481:United States / Q000453:epidemiology