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Significance of Respiratory Symptoms and the Diagnosis of Chronic Bronchitis in a Working Population

Br Med J 1959; 2 doi: https://doi.org/10.1136/bmj.2.5147.257 (Published 29 August 1959) Cite this as: Br Med J 1959;2:257

Article usage

Article metrics provide readers and authors with an indication of how often a specific article has been accessed month by month. It counts three formats - abstract/extract, full text and pdf. The page is updated each day.

Usage statistics: January 2018 to February 2024

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