RT Journal Article SR Electronic T1 An Introduction to Pathology JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 355 OP 356 DO 10.1136/jcp.7.4.355-b VO 7 IS 4 A1 Crawford, T. YR 1954 UL http://jcp.bmj.com/content/7/4/355.2.abstract AB