title: Organic psychiatric disease in young adults and aged patients.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001921:Brain / Q000378:metabolism; D002560:Cerebrovascular Circulation; D006801:Humans; D008875:Middle Aged; D019965:Neurocognitive Disorders / Q000145:classification / Q000175:diagnosis* / Q000453:epidemiology; D010084:Oxidation-Reduction; D013577:Syndrome