RT Journal Article SR Electronic T1 Diagnostic value of examining bronchial secretions in pulmonary cytopathology. JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 477 DO 10.1136/jcp.47.5.477 VO 47 IS 5 A1 E Piaton A1 M H Ravigneaux A1 B Saugier YR 1994 UL http://jcp.bmj.com/content/47/5/477.abstract AB