RT Journal Article SR Electronic T1 The Nijmegen Questionnaire and dysfunctional breathing JF ERJ Open Research JO erjor FD European Respiratory Society SP 00001-2015 DO 10.1183/23120541.00001-2015 VO 1 IS 1 A1 van Dixhoorn, Jan A1 Folgering, Hans YR 2015 UL https://publications.ersnet.org//content/1/1/00001-2015.abstract AB