长期接触石棉、铍、铀、二氧化硅、氡气等有害物质，或暴露于煤烟、煤粉尘环境者，肺癌风险增高。筛查规划仅对某些类型而非所有类型的癌症有效，而且一般来说，筛查规划比早期诊断复杂得多并需要更大量的资源，包括需要特殊设备和专门人员。即使建立了�

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