Epidemiologic investigations showed incidence rate of lung cancer, bladder cancer and cardiovascular disease significantly increased in the population exposed to them both.
学者们在流行病学调查中发现高砷暴露的吸烟者的肺癌、膀胱癌、心血管疾病等的发病率明显增加。
Lung cancer is one of the most common malignant tumor. For half a century the incidence of the primary lung cancer and the death rate have obviously risen in many countries and areas in the world.
肺癌是我国最常见的恶性肿瘤之一，半个世纪以来原发性肺癌发病率和死亡率在世界许多国家及地区都显著上升。
The foreword incidence rate of malignant tumours is lung cancer, nasopharyngeal carcinoma and liver cancer .
恶性肿瘤患病率前三位依次是肺癌、鼻咽癌、肝癌；
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