Young Young RM RM Harmful drinking in military veterans with post-traumatic stress disorder: association with the D2 dopamine receptor a1 allele Harmful drinking in military veterans with post-traumatic stress disorder: association with the D2 dopamine receptor a1 allele Alcohol Alcohol Alcohol Alcohol 2002 2002 37 37 451 451 456 456 supplied-pmid 12217937? Here, DRD2 is linked to post-traumatic stress disorder.