Role of comorbidities on mortality in patients hospitalized for COPD exacerbations
Aurelio Arnedillo, Mercedes Sanchez-Bommatty, Antonio Hidalgo-Molina, Fernando Romero-Valero, Juan Jose Fernandez-Berni, Cayo Garcia-Polo, Mercedes Merino-Sanchez, Antonio Leon-Jimenez
European Respiratory Journal 2014 44: P968; DOI: