Chunk #5 — 2. METHODS — 2.3 Genotyping

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Are genetic variants for tobacco smoking associated with cannabis involvement?

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yes

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As described in more detail in a previous publication (Laurie et al., 2010), genotypic data were obtained from the Illumina Human 1M beadchip. For the current analyses, 11 SNPs were selected based on evidence for genomewide significant association in three large meta-analyses (Table 1).