RT Journal Article SR Electronic T1 Commentary: Exploring the potential of mechanical insufflation–exsufflation JF Breathe JO breathe FD European Respiratory Society SP 326 OP 329 VO 4 IS 4 A1 M. R. Gonçalves A1 J. C. Winck YR 2008 UL http://breathe.ersjournals.com/content/4/4/326.abstract AB