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Chunk #8 — MATERIALS AND METHODS — Samples — Center on Antisocial Drug Dependence (CADD)

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Nominal association with CHRNA4 variants and nicotine dependence.
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analysis, genotypic data from all available family members were included, but the phenotypic data were limited to the offspring generation (probands, siblings, half-siblings, cousins, adopted siblings that were less than 35 years old at the time of assessment). Table 1 provides descriptive information about the sample used in the current analysis.