The present study indicates a significant elevating trend of SP-A and SP-D levels in ITO-manufacturing workers, which are sensitive markers of interstitial lung disease. Though the indium exposure is not directly linked to all indicators of oxidative DNA damage, the ITO-manufacturing workplace is suggested to be related to oxidative DNA damage for the workers in the current study. Therefore, in addition to the indium exposure, there might be other occupational hazards in the ITO workplace to cause oxidative damage.

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