RT Journal Article SR Electronic T1 Pulmonary infection in Wegener's granulomatosis and idiopathic pulmonary fibrosis JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 647 OP 649 DO 10.1136/thx.2009.115089 VO 64 IS 8 A1 Nicholas Kim Harrison YR 2009 UL http://thorax.bmj.com/content/64/8/647.abstract AB