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RATIONALE Low body mass index (BMI) is a marker of poor prognosis in chronic obstructive pulmonary disease (COPD). In the general population, the harmful effect of low BMI is due to the deleterious(More)
BACKGROUND Whether the combination of a once-daily inhaled corticosteroid with a once-daily longacting β(2) agonist is more protective than a once-daily longacting β(2) agonist alone against(More)