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为了研究肺癌死亡超高危险的问题,1979年,由遍布全日本的11个劳灾病院参加,并根据《关于尘肺与肺癌之间关系的联合调查方案》进行了调查。本方案对1979～1983年在上述医院住院治疗的3335例男性尘肺病例进行了登记和随访。在此队列中,肺癌的标化死亡比(SM
To investigate the high risk of death from lung cancer, a survey was conducted in 1979 by 11 shelters throughout Japan and based on the “Joint Investigation Program on the Relationship Between Pneumoconiosis and Lung Cancer”. The program registered and followed 3335 cases of male pneumoconiosis hospitalized in the above hospitals from 1979 to 1983. In this cohort, the standardized death rate for lung cancer (SM