%0 Journal Article %A Jan van Dixhoorn %A Hans Folgering %T The Nijmegen Questionnaire and dysfunctional breathing %D 2015 %R 10.1183/23120541.00001-2015 %J ERJ Open Research %P 00001-2015 %V 1 %N 1 %U https://openres.ersjournals.com/content/erjor/1/1/00001-2015.full.pdf