RT Journal Article SR Electronic T1 Value of washings and brushings at fibreoptic bronchoscopy in the diagnosis of lung cancer. JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 74 OP 74 DO 10.1136/thx.46.1.74-b VO 46 IS 1 A1 Trevisani, L. A1 Pazzi, P. A1 Sartori, S. A1 Potena, A. YR 1991 UL http://thorax.bmj.com/content/46/1/74.2.abstract AB