矽肺合并肺癌多为早期矽肺，肺癌病变多分布在肺上叶，病理形态鳞癌较多。
Most of the cases with silicosis complicated by lung cancer are in early stage.
心肌细胞形态改变发生稍晚，是早期基因表达改变的后果。
The histological changes occur later, which is the result of early gene expression.
心肌细胞形态改变发生稍晚，是早期基因表达改变的后果。
The histological changes occur later, which is the result of early gene expression.
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