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;

Chester step test to identify functional impairment in interstitial lung disease C. Paixão; A. Alves; A.S. Grave; P.G. Ferreira; D. Brooks; A. Marques;