RT Journal Article SR Electronic T1 Machine Readable Labels in the Blood Transfusion Service JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 908 OP 908 DO 10.1136/jcp.33.9.908-d VO 33 IS 9 A1 R Mitchell YR 1980 UL http://jcp.bmj.com/content/33/9/908.4.abstract AB