The patient reports a history of asbestos exposure as a carpenter and denies smoking.

患者自述曾为木匠、有石棉接触史,无吸烟史.

The association between asbestos exposure and bronchogenic carcinoma is now accepted as being causal in nature.

石棉暴露作为环境因素和支气管肺癌的关系已经被我们所接受.