title: Metabolic disorders associated with mental retardation.
mesh_terms: D000653:Amniotic Fluid / Q000166:cytology; D002675:Child, Preschool; D005260:Female; D005347:Fibroblasts / Q000201:enzymology; D006579:Heterozygote; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008607:Intellectual Disability / Q000201:enzymology / Q000209:etiology* / Q000235:genetics; D007962:Leukocytes / Q000201:enzymology; D008297:Male; D008661:Metabolism, Inborn Errors / Q000150:complications* / Q000175:diagnosis