Mental retardation in children.
D001921:Brain; D001927:Brain Diseases; D002648:Child; D003677:Deficiency Diseases; D004314:Down Syndrome; D006801:Humans; D007037:Hypothyroidism; D000860:Hypoxia; D007223:Infant; D007234:Infant, Premature; D008607:Intellectual Disability / Q000209:etiology*
ANOXIA; BRAIN/diseases; DEFICIENCY DISEASES/in infant and child; HYPOTHYROIDISM/in infant and child; INFANT, PREMATURE; MENTAL DEFICIENCY/etiology and pathogenesis; MONGOLISM