ERBB2 and urinary bladder cancer: For example, HER1 and HER2 expressions were correlated with both good (Gandour-Edwards et al, 2002; Chakravarti et al, 2005) and poor (Kruger et al, 2002; Popov et al, 2004) prognosis in bladder cancer, whereas other suggest that there is either no or only limited prognostic significance of HER1 and HER2 expression in this disease (Mellon et al, 1996; Ravery et al, 1997).