. . . . . . . "[The aim of the study was to explore the existence of an interaction between COMT genotype and cannabis use in early stages of psychosis and its effects on the age of onset in a representative group of first-episode psychosis patients.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2017-02-21"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2017-10-17T13:11:40+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .