References
- Harris EK. Distinguishing physiologic variation from analytic variation. J Chron Dis 1970;23:469–80.
- Harris EK, Kanofsky P, Shakarji G, Cotlove E. Biological and analytical components of variation in long-term studies of serum constituents in normal subjects. II. Estimating biological components of variation. Clin Chem 1970;16:1022–7.
- Harris EK. Statistical principles underlying analytical goal-setting in clinical chemistry. Am J Clin Pathol 1979;72:374–82.
- Harris EK. Proposed goals for analytical precision and accuracy in single-point diagnostic testing. Arch Pathol Lab Med 1988;112:416–20.
- Harris EK, Brown SS. Temporal changes in the concentration of serum constituents in healthy men. Distributions of within-person variances and their relevance to the interpretation of differences between successive measurements. Ann Clin Biochem 1979;16:169–76.
- Harris EK, Yasaka T. On the calculation of ‘reference change’ for comparing two consecutive measurements. Clin Chem 1983;29:25–30.
- Fuentes-Arderiu X, González-de-la-Presa. Interchangeability of estimates of day-to-day imprecision between commercial control materials and serum pools. Clin Chem 2002;48:573–4.
- Fuentes-Arderiu X. Variability of the biological variation. Scand J Clin Lab Invest 2002;62:561–4.
- International Federation of Clinical Chemistry, International Committee for Standardization in Hæematology. Approved recommendation (1987) on the theory of reference values. Part 5. Statistical treatment of collected reference values. Determination of reference limits. Clin Chim Acta 1987;170:S13–S32; also published in J Clin Chem Clin Biochem 1987;25:645–56.
- Van Steirteghem AC, Robertson EA, Young DS. Variance components of serum constituents in healthy individuals. Clin Chem 1978;24:212–22.
- Gallagher SK, Johnson LK, Milne DB. Short- and long-term variability of selected indices related to nutritional status. II. Vitamins, Lipids, and proteins indices. Clin Chem 1992;38:1449–53.
- Browning MCK, Ford RP, Callaghan SJ, Fraser CG. Intra- and interindividual biological variation of five analytes used in assessing thyroid function: implications for necessary standards of performance and the interpretation of results. Clin Chem 1986;32:962–6.
- Ankrah-Tetteh T, Wijeratne S, Swaminathan R. Intraindividual variation in serum thyroid hormones, parathyroid hormone and insulin-like grow factor-1. Ann Clin Biochem 2008;45:167–9.
- Nakagawa S, Cuthill IC. Effect size, confidence interval and statistical significance: a practical guide for biologists. Biol Rev 2007;82:591–605.
- Smellie WS. What is a significant difference between sequential laboratory results? J Clin Pathol 2008;61:419–25.
- Vasile VC, Saenger AK, Kroning JM, Jaffe AS. Biological and analytical variability of a novel high-sensitivity cardiac troponin T assay. Clin Chem 2010;56:1086–90.
- Fuentes-Arderiu X. Biological variation of non-SI traceable biological quantities: example of proteins. Chem Lab Med 2006;44:1497.
- International Union of Pure and Applied Chemistry, International Federation of Clinical Chemistry. Properties and units in the clinical laboratory sciences-I. Syntax and semantic rules (Recommendations 1995). Pure Appl Chem 1995;67:1563–74.