“…Expression of p53 has been studied immunohistochemically in a number of neoplasms [6,17,27,39,46,48] where a good correlation between p53 protein expression and tumour stage has been shown. These reports comprise observations obtained in colorectal, head and neck, lung, urinary bladder, gastric, oesophageal and ovarian cancers [18,26,35,41,48,52].…”