RT Journal Article SR Electronic T1 International Histological Classification of Tumours, No. 20: Histological Typing of Tumours of the Liver, Biliary Tract and Pancreas JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 1306 OP 1306 DO 10.1136/jcp.32.12.1306-a VO 32 IS 12 A1 Cameron, H. M. YR 1979 UL http://jcp.bmj.com/content/32/12/1306.1.abstract AB