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武汉市自1988年至今，恶性肿瘤一直居全死因的前三位，其中肺癌为武汉市的首位恶性肿瘤。为找出肺癌的发病原因，为肺癌的防治提供可靠依据，同时，为国家肿瘤防治规划、实施的监督和评价提供信息，我们对武汉市肺癌相关因素进行了病例对照研究。l材料与方法1．1材料本次研究的
Since 1988, in Wuhan, malignant tumors have been among the top three causes of death. Among them, lung cancer is the first malignant tumor in Wuhan. To find out the causes of lung cancer, provide a reliable basis for the prevention and treatment of lung cancer. At the same time, it provides information for the supervision and evaluation of national cancer prevention planning and implementation. We conducted a case-control study on lung cancer related factors in Wuhan. l Materials and Methods 1.1 Materials for this study