RT Journal Article SR Electronic T1 Quality of life in cystic fibrosis JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 721 OP 722 DO 10.1136/thx.53.9.721 VO 53 IS 9 A1 D J FRENCH YR 1998 UL http://thorax.bmj.com/content/53/9/721.abstract AB