title: Classifying and treating organic brain syndromes.
mesh_terms: D000375:Aging; D000544:Alzheimer Disease / Q000145:classification / Q000209:etiology / Q000628:therapy; D002560:Cerebrovascular Circulation; D003704:Dementia; D006801:Humans; D010275:Parasympathetic Nervous System / Q000201:enzymology / Q000503:physiopathology