Assessing health status in COPD. A head-to-head comparison between the COPD assessment test (CAT) and the clinical COPD questionnaire (CCQ)

by Tsiligianni Ioanna G, van der Molen Thys, Moraitaki Despoina, Lopez Ilaine, Kocks Janwillem WH, Karagiannis Konstantinos, Siafakas Nikolaos, Tzanakis Nikolaos
Published 2012-05-01