Prevention of retardation of genetic origin.
D001787:Blood Group Incompatibility / Q000175:diagnosis; D002869:Chromosome Aberrations / Q000150:complications / Q000175:diagnosis*; D025063:Chromosome Disorders; D005260:Female; D006579:Heterozygote; D006720:Homozygote; D006801:Humans; D007231:Infant, Newborn; D008607:Intellectual Disability / Q000209:etiology / Q000235:genetics* / Q000517:prevention & control; D007621:Karyotyping; D008403:Mass Screening; D008423:Maternal Age; D008431:Maternal-Fetal Exchange; D008661:Metabolism, Inborn Errors / Q000150:complications / Q000175:diagnosis* / Q000517:prevention & control; D008722:Methods; D011247:Pregnancy; D011296:Prenatal Diagnosis; D011336:Probability; D014481:United States