RT Journal Article SR Electronic T1 Induced sputum for the diagnosis of paediatric pulmonary TB JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 300 OP 300 DO 10.1136/thx.2005.la0143 VO 60 IS 4 A1 M Wijesinghe YR 2005 UL http://thorax.bmj.com/content/60/4/300.abstract AB