GRM7 and schizophrenia: SNPs rs13353402 and rs1531939 demonstrate a significant difference between schizophrenic patients and control subjects in allele frequencies (rs13353402: p-value = 0.0307; rs1531939: p-value = 0.0328), indicating that the GRM7 SNPs rs13353402 and rs1531939 might be associated with schizophrenia in the Chinese Han population [128].