RT Journal Article SR Electronic T1 Lupus cofactor phenomenon. JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 264 DO 10.1136/jcp.43.3.264 VO 43 IS 3 A1 Magrath, M YR 1990 UL http://jcp.bmj.com/content/43/3/264.abstract AB