The value of multiple tests of respiratory muscle strength
Joerg Steier, Sunny Kaul, John Seymour, Caroline Jolley, Gerrard Rafferty, William Man, Yuan M Luo, Michael Roughton, Michael I Polkey, John Moxham
Thorax Nov 2007, 62 (11) 975-980; DOI: 10.1136/thx.2006.072884