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The majority of patients with acute exacerbations of chronic obstructive pulmonary disease (AECOPD) have low serum procalcitonin (PCT) values. The aim of this study was to determine whether these patients may benefit from antibiotic treatment.A total of 457 patients with AECOPD were screened; 194 patients with AECOPD and PCT <0.1 ng/ml were assigned randomly to an antibiotic group or a control...
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