RT Journal Article SR Electronic T1 A breathless builder JF Breathe JO Breathe FD European Respiratory Society SP 386 OP 390 DO 10.1183/18106838.0304.386 VO 3 IS 4 A1 J.J. Lyons A1 P.J. Sime A1 D. Ward A1 T. Watson A1 J.L. Abraham A1 R. Evans A1 M. Budev A1 K. Costas A1 W.S. Beckett YR 2007 UL http://breathe.ersjournals.com/content/3/4/386.abstract AB