Chronic bronchitis: disputable and unsolved problems

N. V. Putov

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ВНИИ пульмонологии Минздрава СССР
Russian Federation

Putov N.V. Chronic bronchitis: disputable and unsolved problems. PULMONOLOGIYA. 1991;(1):9-15. (In Russ.)

ISSN 0869-0189 (Print)
ISSN 2541-9617 (Online)

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