![Impact of comorbidities on physical activity in COPD]()
Impact of comorbidities on physical activity in COPDSievi, Noriane A.; Senn, Oliver; Brack, Thomas; Brutsche, Martin H.; Frey, Martin; Irani, Sarosh; Leuppi, Jörg D.; Thurnheer, Robert; Franzen, Daniel; Kohler, Malcolm; Clarenbach, Christian F. · Respirology · 2015