Temporal trends in the incidence of malformation in the United States, selected years, 1970-71, 1982-83.
D002487:Centers for Disease Control and Prevention, U.S.; D000013:Congenital Abnormalities / Q000453:epidemiology*; D006801:Humans; D007231:Infant, Newborn; D011159:Population Surveillance; D013997:Time Factors; D014481:United States