. . . . . . . . . . . . "[In a general population sample from the Detroit site of the Collaborative Genetic Study of Nicotine Dependence (COGEND), we tested Black-White differences in nicotine dependence, measured by `how soon after wake-up the smokers smoked their first cigarette (time to first cigarette TTFC)`, and its relationship with number of cigarettes per day (CPD).]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2014-02-25"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2014-10-02T12:41:06+02:00"^^ . . . . . . . . . . . "v2.1.0.0" . "v2.1.0" .