StewartMJ. Quality control of interpretation—possibility, necessity or threat?Ann Clin Biochem1989; 26: 111–2.
2.
HutchessonACJ. Quality assurance: Clinical biochemists outside the laboratory. Ann Clin Biochem1990; 27: 517–18.
3.
JohnsonJK. Quality control of interpretation — possibility, necessity or threat. Ann Clin Biochem1989; 26: 459–60 (Letter).
4.
BullockDGGrocuttCRatcliffeJGSwiftAD. Interpretation of thyroid function test results—an external quality assessment survey. Ann Clin Biochem1987; 24 (suppl 2): 182.
5.
SethJ. The external quality assessment of hormone assays. J Clin Biochem Nutr1987; 2: 111–39.
6.
WienerK. The oral glucose tolerance test—an assessment of the quality of its performance. Ann Clin Biochem1987; 24: 440–6.
7.
RattenburyJMWorthyEAllenJC. Screening tests for glycosaminoglycans in urine: Experience from regional interlaboratory surveys. J Clin Pathol1988; 41: 936–9.
8.
BrimbleAPennockCStoneJ. Results of a quality assurance exercise for urinary glycosaminoglycan excretion. Ann Clin Biochem1990; 27: 133–8.
9.
HommesFABlitzerMGBrewsterMA. Proficiency testing for biochemical genetics laboratories: The first ten rounds of testing. Am J Hum Genet1990; 46: 1001–4.