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

Alterations in central hemodynamic in patients with COPD after acute high intensity exercise M. Behnia, C.M. Wheatley-Guy, B.D. Johnson, A. Avolio, C.-H. Kim

COPD phenotypes by computed tomography and ventilatory response to exercise S. Rodrigues Sousa, J. Nunes Caldeira, C. Rodrigues