title: Genetics of mental subnormality.
mesh_terms: D000015:Abnormalities, Multiple; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D004035:Diet Therapy; D004314:Down Syndrome / Q000235:genetics; D005260:Female; D005799:Genes, Dominant; D005808:Genes, Recessive; D005817:Genetic Counseling; D014644:Genetic Variation; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000175:diagnosis; D008607:Intellectual Disability / Q000235:genetics*; D007360:Intelligence; D008403:Mass Screening; D008661:Metabolism, Inborn Errors / Q000175:diagnosis / Q000235:genetics / Q000628:therapy; D011247:Pregnancy; D011296:Prenatal Diagnosis; D012729:Sex Chromosome Aberrations