MKI67 and central nervous system cancer: The comparison of music effects on the Ki67 expression in rats with glioma receiving and not receiving BZM shows that the glioma proliferation was 6.9-fold less in the GBM+BZM+Music vs. the GBM+BZM groups (2.21 ± 0.22% vs. 15.40 ± 4.62%, p<0.05, the Mann–Whitney–Wilcoxon test, n=7 in each group).