Figure 5From: Immunohistochemical investigation of cell cycle and apoptosis regulators (Survivin, β-Catenin, P53, Caspase 3) in canine appendicular osteosarcomaPositive control tissues for p53. a- Human mammary carcinoma. p53-positive nuclei (arrows) (Bar. 40 μm). b – Canine nail bed squamous cell carcinoma. Numerous p53-positive nuclei (arrows) (Bar. 40 μm).Back to article page