By Margretardottir Olof Birna   Thorleifsson Sigurdur James   Gudmundsson Gunnar   Olafsson Isleifur   Benediktsdottir Bryndis   Janson Christer   Buist A. Sonia   Gislason Thorarinn   in COPD: Journal of Chronic Obstructive Pulmonary Disease

ISSN:1541-2555|6|4|250-255

Informa Healthcare‎(2009)‎

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