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We report our experience in the treatment of carcinoma in situ of the urinary bladder using Evans strain Bacille Calmette-Guérin (BCG). The mean period of follow-up was 30 months; 18 patients received intravesical therapy and 16 of these were evaluable. They received 8 weekly instillations of 60 mg Evans strain BCG in 50 ml of saline. No intradermal BCG was given. The response rate was 93.75% at 3 months; this declined to 57% at 2 years. The complications of therapy were frequent but mild. Seven patients failed to complete the course. These results were comparable to those obtained with other strains of Bacille Calmette-Guérin.
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CUMMING et al. (1989) studied this question.
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