RT Journal Article SR Electronic T1 Getting controls under control: the time is now for immunohistochemistry JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 879 OP 882 DO 10.1136/jclinpath-2014-202705 VO 68 IS 11 A1 Torlakovic, Emina Emilia A1 Nielsen, Søren A1 Vyberg, Mogens A1 Taylor, Clive R YR 2015 UL http://jcp.bmj.com/content/68/11/879.abstract AB For several decades, immunohistochemistry (IHC), more specifically diagnostic IHC (dIHC), has been considered an art rather than a laboratory test. There was no clarity about what test performance characteristics are relevant to dIHC, test performance characteristics were not fully defined for dIHC and partly as a consequence of that, there were no standardised controls or reference standards. Herein, we discuss the role of standardisation of external controls for test performance characteristics and the role of standardised controls and reference standards for overall standardisation of IHC.