RT Journal Article SR Electronic T1 Airway obstruction is associated with reduced variability in specific parts of the tidal breathing flow–volume curve in young children JF ERJ Open Research JO erjor FD European Respiratory Society SP 00028-2019 DO 10.1183/23120541.00028-2019 VO 5 IS 2 A1 Ville-Pekka Seppä A1 Anton Hult A1 Javier Gracia-Tabuenca A1 Marita Paassilta A1 Jari Viik A1 Davor Plavec A1 Jussi Karjalainen YR 2019 UL http://openres.ersjournals.com/content/5/2/00028-2019.abstract AB