Chunk #3 — INTRODUCTION

Source: The dopamine receptor D2 (DRD2) SNP rs1076560 is associated with opioid addiction.
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As rs1076560 and rs2283265 are in perfect LD in Europeans and in (r2=1, D’=1; HapMap release 27, CEU population) Yoruban Africans (r2=1, D’=1; HapMap release 27, YRI population), only rs1076560 was selected for genotyping in this study.