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Abstract
Entities: Disease
Mesh: See more » Bronchitis/epidemiologyCoal MiningHumansMalePneumoconiosis/diagnostic imagingPneumoconiosis/epidemiologyRadiographySilicosis/diagnostic imagingSocial WelfareUnited Kingdom
Year: 1970 PMID: 5454338 PMCID: PMC1701375
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447