Infective exacerbations of COPD. Relation between the bacteriologic etiology and severity of the disease
Ahmed Ben Saad, Naceur Rouatbi, Neji Skhiri, Samah Joobeur, Hadhemi Mribah, Saousen Cheikh Mhamed, Ali El Kamel
European Respiratory Journal 2014 44: P4734; DOI: