Chunk #16 — Materials and methods — Genotyping in discovery sample

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Genome-wide polygenic scores for age at onset of alcohol dependence and association with alcohol-related measures.

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Genotyping was conducted using the Illumina OmniExpress array (Illumina, San Diego, CA, USA). A total of 4 058 415 SNPs that were imputed in BEAGLE (https://faculty.washington.edu/browning/beagle/beagle.html) were analyzed. Further details are available in the manuscript by Kapoor et al.;15 data are available at dbGaP phs000763.