The prevention of mental defect.
D005053:Eugenics; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008607:Intellectual Disability / Q000145:classification / Q000175:diagnosis / Q000209:etiology / Q000517:prevention & control*; D008499:Medical Records; D009520:New Zealand; D010808:Physical Examination; D011247:Pregnancy; D011295:Prenatal Care