Back to the Roots of Chronic Obstructive Pulmonary Disease: The Severity of Respiratory Impairment Matters

Publisher: Karger

E-ISSN: 1423-0356|84|1|12-13

ISSN: 0025-7931

Source: Respiration, Vol.84, Iss.1, 2012-03, pp. : 12-13

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