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Proceedings of the Royal Society of Medicine logoLink to Proceedings of the Royal Society of Medicine
. 1964 Oct;57(10 Pt 2):975–978. doi: 10.1177/003591576405710P203

International Comparisons of the Prevalence of Chronic Bronchitis

Torbjørn Mork
PMCID: PMC1898154  PMID: 14212574

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