Independent effect of prior exacerbation frequency and disease severity on the risk of future exacerbations of COPD: a retrospective cohort study

por Margüello, Miguel Santibañez, Garrastazu, Roberto, Ruiz-Nuñez, Mario, Helguera, Jose Manuel, Arenal, Sandra, Bonnardeux, Cristina, León, Carlos, Miravitlles, Marc, García-Rivero, Juan Luis
Publicado 2016