Bladder cancer is the most common malignant tumor of the urinary tract. Occupational exposures are the most risk factors for bladder cancer besides smoking.

膀胱癌是人类泌尿系统最常见的恶性肿瘤，除吸烟外职业暴露是其最主要的病因。

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Bladder cancer is the most common malignant tumor of the urinary tract. Occupational exposures are the most risk factors for bladder cancer besides smoking.

膀胱癌是人类泌尿系统最常见的恶性肿瘤，除吸烟外职业暴露是其最主要的病因。

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