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Title
Prediction and course of symptoms and lung function around an exacerbation in chronic obstructive pulmonary disease
Authors
van den Berge, Maarten; Hop, Wim CJ; van der Molen, Thys; van Noord, Jan A; Creemers, Jacques PHM; Schreurs, Ad JM; Wouters, Emiel FM; Postma, Dirkje S; the COSMIC (COPD and Seretide: a Multi-Center Intervention and Characterization) study group