MKI67 and neoplasm: Treatment with USMB only resulted in tumour with a Ki-67 index of (0.88 ± 0.09%, mean ± SE) at week 1, (0.71 ± 0.04%) at week 2, (0.53 ± 0.12%) at week 3 and (1.26 ± 0.23%) at week 4.