Figure 3 Immunohistochemical score values for Ki67 (A) and CD34 (B), parathyroid hormone‐related protein (with antisera C6 and C7) and the parathyroid hormone1 receptor (PTH1R; C), osteoprotegerin (OPG) and receptor activator of nuclear factor‐κ B ligand (RANKL; D) in low‐grade (LG) and high‐grade (HG) groups with prostate carcinoma. White and grey bars denote the corresponding values as mean (standard error of the mean) in non‐tumoral and neoplastic area, respectively. *p<0.01; **p<0.05 vs corresponding values in non‐tumoral area (by Wilcoxon's rank test). ap<0.01; bp<0.05 vs corresponding values in LG tumours (by Mann–Whitney U test).