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One‐year intravesical recurrence according to subgroups. The hazard ratio for intravesical recurrence was analyzed by Cox's proportional hazard analysis. An arrow indicates that the limits of the confidence interval (CI) are not shown. BCG, Bacillus Calmette‐Guérin; CIS, cancer in situ; NA, not applicable; NMIBC, non‐muscle invasive bladder cancer; PDD, photodynamic diagnosis; TUR, transurethral resection; UTUC, upper urinary tract urothelial carcinoma; WL, white light.
