RT Journal Article SR Electronic T1 Assembly 14: clinical techniques, imaging and endoscopy JF Breathe JO Breathe FD European Respiratory Society SP 356 OP 357 DO 10.1183/20734735.0218-2019 VO 15 IS 4 A1 Walter De Wever YR 2019 UL http://breathe.ersjournals.com/content/15/4/356.abstract AB