Role of the obstetrician in the prevention of mental retardation.
D001741:Black or African American; D001720:Birth Injuries / Q000517:prevention & control*; D001724:Birth Weight; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008607:Intellectual Disability / Q000517:prevention & control*; D007752:Obstetric Labor, Premature / Q000453:epidemiology; D011247:Pregnancy; D014481:United States; D044465:White People