Table 1. Summary of immunofluorescence staining analysis of EphB4 and EphB2 expression in normal and tumor urothelium specimens.

			Positive number (percentage)
Urothelium specimens		Total number	EphB2+	EphB4+
Overall	Normal	24	20 (83)*	0 (0)
	Tumor	34	0 (0)	32 (92)*
Matched samples	Normal	18	14 (78)*	0 (0)
	Tumor	18	0 (0)	16 (89)*

*P<0.001, determined by two sample t-test.