RT Journal Article SR Electronic T1 UK NEQAS in antibiotic assays JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 829 OP 834 DO 10.1136/jcp.53.11.829 VO 53 IS 11 A1 White, L O YR 2000 UL http://jcp.bmj.com/content/53/11/829.abstract AB How providers of external quality assessment (EQA) programmes relate to and interact with the monitors and watchdog of clinical laboratory performance in the UK is described. With regard to the quality of antibiotic assays, the changes in methodologies and in performance quality between 1971 (when the UK NEQAS for Antibiotic Assays began) and 1999 is reviewed. How improvements in performance and changes of methodology are related is discussed. The findings and conclusions of two experimental pilot EQA distributions (the teicoplanin assay and serum bactericidal test) are also discussed.