RT Journal Article SR Electronic T1 Triple therapy in COPD: understanding the data JF ERJ Open Research JO erjor FD European Respiratory Society SP 00615-2022 DO 10.1183/23120541.00615-2022 VO 9 IS 1 A1 Suissa, Samy YR 2023 UL http://openres.ersjournals.com/content/9/1/00615-2022.abstract AB