There were no correlations found between schizophrenia and the ERBB4 rs839523C/T polymorphism (p = 0.096 for genotypes and p = 0.113 for alleles) or the GABRB2 rs1816072 T/C polymorphism (p = 1.00 for genotypes and p = 0.15 for alleles) in the Lebanese population. Here, ERBB4 is linked to schizophrenia.