RT Journal Article SR Electronic T1 Exertional multidimensional dyspnoea predicts exacerbation in stable outpatients with COPD JF ERJ Open Research JO erjor FD European Respiratory Society SP 00150-2021 DO 10.1183/23120541.00150-2021 VO 7 IS 4 A1 Kanezaki, Masashi A1 Terada, Kunihiko A1 Tanabe, Naoya A1 Shima, Hiroshi A1 Hamakawa, Yoko A1 Sato, Susumu YR 2021 UL http://openres.ersjournals.com/content/7/4/00150-2021.abstract AB