The COPD assessment test and the modified Medical Research Council scale are not equivalent when related to the maximal exercise capacity in COPD patients R. Pisi, M. Aiello, L. Calzetta, A. Frizzelli, P. Tzani, G. Bertorelli, A. Chetta

Identification and assessment of COPD exacerbations A.S. Oliveira, J. Munhá, A. Bugalho, M. Guimarães, G. Reis, A. Marques

Clinical and molecular markers in COPD I. Gonçalves, M.J. Guimarães, M. van Zeller, F. Menezes, J. Moita, P. Simão