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The relationship between coal rank and the prevalence of pneumoconiosis.
As part of the Periodic X-ray Scheme of the National Coal Board (NCB), a comparison is made between the previous and new films of all miners who were face-workers on the former occasion, five years earlier. This assessment is made by distributing the films randomly to all the NCB readers. This paper...
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| Main Authors: | , , , , , , |
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| Format: | Artigo |
| Language: | Inglês |
| Published: |
1979
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| Subjects: | |
| Online Access: | https://ncbi.nlm.nih.gov/pmc/articles/PMC1008565/ https://ncbi.nlm.nih.gov/pubmed/500778 |
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