Article
Genome-wide single nucleotide polymorphism heritability of nicotine dependence as a multidimensional phenotype.
Psychological medicine - 1 Jul 2016
Bidwell L C, Palmer R H C, Brick L, McGeary J E, Knopik V S
Abstract excerpt
BACKGROUND: Heritability estimates from twin studies of the multi-faceted phenotype of nicotine dependence (ND) range from moderate to high (31-60%), but vary substantially based on the specific ND-related construct examined. The current study estimated the aggregate role of common genetic variants on key ND constructs. METHOD: Genomic-relationship-matrix restricted maximum likelihood (GREML) was used to...
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