
Contemporary Management of Acute Exacerbations of COPD : A Systematic Review and Metaanalysis
Keywords: تشدید; controlled clinical trial; COPD; exacerbation; metaanalysisBPAP, bilevel positive airway pressure; CI, confidence interval; GOLD, Global Initiative for Chronic Obstructive Lung Disease; LOS, length of hospital stay; NPPV, noninvasive positive pressure ven