Expression of Cyclooxygenase-2 in Primary Superficial Bladder Cancer Tissue may Predict Risk of its Recurrence after Complete Transurethral Resection - Okajima, E; Uemura, H; Ohnishi, S; Tanaka, M; Ohta, M; Tani, M; Fujimoto, K; Ozono, S; Hirao, Y (Aktuelle Urologie, 2003)