RT Journal Article SR Electronic T1 ABC of Transfusion JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 1039 OP 1039 DO 10.1136/jcp.43.12.1039-b VO 43 IS 12 A1 JK Wood YR 1990 UL http://jcp.bmj.com/content/43/12/1039.2.abstract AB