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

Debating pharmacological options for dyspnoea relief; the need for full, accurate and balanced critical appraisal of the evidence Joanna C. Grogono, Kyle T.S. Pattinson, Shakeeb H. Moosavi

Asthma-COPD overlap: A Portuguese survey E. Padrão, D. Araújo, A. Todo Bom, C. Robalo Cordeiro, J. Correia de Sousa, J. Cardoso, M. Morais-Almeida, R. Costa, F. Pavão, R.B. Leite, A. Marques