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Thorax 55:277-282 doi:10.1136/thorax.55.4.277
  • Original article

Increased risk of obstructive pulmonary disease in tunnel workers

Table 6

Exposure to pollutants in tunnels and outdoor construction work

  • HS= Norwegian hygienic standards; GM = geometric mean.

  • 6-150 Confidence interval of geometric mean (GM).

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