The EXACERBANTES Study (Exacerbation of Chronic Obstructive Pulmonary Disease According to the ANTES Proposal): Rationale, Goals and Design - Soler-Cataluña,J.J.; Fernández-Villar,A.; Izquierdo,J.L.; García-Rivero,J.L.; Cosio,B.G.; López-Campos,J.L.; Miravitlles,M.; Agustí,A. (Open Respiratory Archives, 2026)