Moreover, because almost 80% of SNPs studied belonged to only two associations with very large genes (NRG1 - Schizophrenia/PARK2 - Parkinson's disease) a third analysis removing these two genes was performed and the same correlation between FST and φ was detected (ρ = 0.152, p < 10-5, n = 821). This evidence concerns the gene PRKN and schizophrenia.