. . . . . . . . . . . . "[To elucidate main effects of dopamine receptor D4 (DRD4) and cathecol-O-methyltransferase (COMT) genes as well as their interaction effect on neurocognitive traits, DRD4 gene polymorphisms (-809G/A, -521C/T) and the COMT gene Val158Met polymorphism, along with characteristics of verbal memory, executive functions and peculiarities of associative processes, have been studied in 150 patients with schizophrenia, 83 their relatives and 118 mentally healthy subjects without positive family history of psychosis.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2013-07-06"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2014-10-02T12:32:20+02:00"^^ . . . . . . . . . . . "v2.1.0.0" . "v2.1.0" .