Chronic obstructive pulmonary disease exacerbations' management in Portuguese hospitals ¿ EvaluateCOPDpt, a multicentre, observational, prospective study J. Moita; U. Brito; C. Rodrigues; L. Ferreira; J.R. Vieira; A. Catarino; A. Morais; V. Hespanhol; C.R. Cordeiro;

Reliability and validity of the Chester step test in patients with interstitial lung disease A. Alves; A. Oliveira; P.G. Ferreira; V. Martins; A. Marques;

Prediction of exercise respiratory limitation from pulmonary function tests D. Shlomi; T. Beck; R. Reuveny; M.J. Segel;