RT Journal Article SR Electronic T1 Prophylactic antibiotic treatment of bronchiectasis with azithromycin JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 540 OP 541 VO 59 IS 6 A1 G Davies A1 R Wilson YR 2004 UL http://thorax.bmj.com/content/59/6/540.2.abstract AB