RT Journal Article SR Electronic T1 The Forced Expiratory Volume after Exercise, Forced Inspiration, and the Valsalva and Müller Manœuvres JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 161 OP 165 DO 10.1136/thx.14.2.161 VO 14 IS 2 A1 L. H. Capel A1 J. Smart YR 1959 UL http://thorax.bmj.com/content/14/2/161.abstract AB