RT Journal Article SR Electronic T1 Biochemical Investigations in Laboratory Medicine JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 80 OP 80 DO 10.1136/jcp.56.1.80-b VO 56 IS 1 A1 M Crook YR 2003 UL http://jcp.bmj.com/content/56/1/80.3.abstract AB