Is group C really needed as a separate group from D in COPD? A single-center cross-sectional study E.E. Yazar; B. Yi..itba..; E.Y. Niksarl..o..lu; M. Bayraktaro..lu; S. Kul;

Impact of acute exacerbations of COPD on patients' health status beyond pulmonary function: A scoping review A. Machado; M. Barusso; J. De Brandt; K. Quadflieg; S. Haesevoets; M. Daenen; M. Thomeer; D. Ruttens; A. Marques; C. Burtin;

Severe exacerbations and mortality in COPD patients: A retrospective analysis of the database of the Hungarian National Health Insurance Fund B. Sánta; G. Tomisa; A. Horváth; T. Balázs; L. Németh; G. Gálffy;