. . . . . . . "[To investigate the role of alpha4 (Ch 20) and beta2 (Ch 1) genes in conferring a risk for smoking and for smoking a large number of cigarettes daily in subjects with schizophrenia.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2017-02-19"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2017-10-17T13:18:31+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .