RT Journal Article SR Electronic T1 SYSTEMATIC PATHOLOGY VOLS. 1 AND 2 JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 381 OP 381 DO 10.1136/jcp.22.3.381-a VO 22 IS 3 A1 A. F. Signy YR 1969 UL http://jcp.bmj.com/content/22/3/381.1.abstract AB