RT Journal Article SR Electronic T1 Manual of Basic Techniques for a Health Laboratory JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 573 OP 573 DO 10.1136/jcp.34.5.573-d VO 34 IS 5 A1 DS Ridley YR 1981 UL http://jcp.bmj.com/content/34/5/573.4.abstract AB