RT Book, Whole SR Electronic A2 Ward, S.A. A2 Palange, P. T1 Clinical Exercise Testing (out of print) YR 2007 SN 978-1-904097-80-8 DO 10.1183/1025448x.ERM4007 OP 230 UL https://books.ersjournals.com/content/9781904097808/9781904097808