RT Book, Whole SR Electronic A2 Webb, A.K. A2 Ratjen, F.A. T1 Cystic Fibrosis (out of print) YR 2006 SN 978-1-904097-85-3 DO 10.1183/1025448x.erm3506 OP 178 UL https://books.ersjournals.com/content/9781904097853/9781904097853