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本研究以１９６１～１９６２年污染较重时期及１９９１～１９９６年污染较轻时期的２９８份肺癌病人手术切除的肺标本作为观察组，同时以６３份肺结核病人（无肺癌）的肺标本作为对照组，研究肺癌发生率与肺组织致癌物浓度的关系。所有研究对象均为日本某地居住２０年以上...
In this study, lung specimens from 298 lung cancer patients undergoing severe pollution from 1961 to 1962 and lighter periods from 1991 to 1996 were taken as the observation group, and lung samples from 63 patients with pulmonary tuberculosis (no lung cancer) were used as controls. , Study the relationship between the incidence of lung cancer and the concentration of carcinogens in lung tissue. All the subjects were living in a certain place in Japan for more than 20 years...