Asthma-COPD Overlap ¿ A Gateway to Biological Treatment Alicia Padilla-Galo; Marina Rubio-Moreno; Borja Valencia-Azcona;

Etiotypes in COPD: a pro/con debate Alvar Agusti; Marc Miravitlles;

Muscle Fatigability of Patients With Severe COPD and Chronic Respiratory Failure: The Contribution of Respiratory Factors Esther Barreiro; Joaquim Gea;