No association of alcohol dependence with a NMDA-receptor 2B gene variant. - Schumann,G.; Rujescu,D.; Szegedi,A.; Singer,P.; Wiemann,S.; Wellek,S.; Giegling,I.; Klawe,C.; Anghelescu,I.; Heinz,A.; Spanagel,R.; Mann,K.; et al. (Mol Psychiatry, 2003)