van Dixhoorn Jan, Folgering Hans
Centre for Breathing Therapy, Amersfoort, The Netherlands; Science Bureau, Linneaus Institure, Haarlem, The Netherlands.
Emeritus Professor of Respiratory Physiology, Nijmegen, The Netherlands.
ERJ Open Res. 2015 May 15;1(1). doi: 10.1183/23120541.00001-2015. eCollection 2015 May.