Chronic bronchitis incidence (based on epidemiological survey data in the Latvian SSR)

Utkin, V.V.; Stepanov, I.N.; Gintere, G.B.

Sovetskoe Zdravookhranenie 2: 34-39

1981


ISSN/ISBN: 0038-5239
PMID: 7209665
Document Number: 176692

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