References
- Ricós C, Andreu A, Schwartz S. Métodos de detección del error extraanalitico. Rev Diag Biol 1988; 37: 269–71.
- Fraser CG, Stevenson HP, Kennedy IMG. Biolo-gical variation data are necessary prerequisites for objective autoverification of clinical laboratory data. Accreditation Qual Assur 2002; 7: 445–60.
- Fraser CG, Harris EK. Generation and applica-tion of data on biological variation in clinical chemistry. Crit Rev Clin Lab Sci 1989; 27: 409–37.
- Fraser CG. Change in serial results. In: Biological variation: from principles to practice. Washington: AACC Press; 2001. p. 67–90.
- Ricós C, Alvarez V, Cava F, Garcia-Lario JV, Hernández A, Jimenez CV, Minchinela J, Perich M, Simon M. Current databases on biological variation: pros, cons and progress. Scand J Clin Lab Invest 1999; 59: 491–500.
- Sociedad Espanola de Bioquimica Clinica y Patologia Molecular. Comité de Garantia de la Calidad y Acreditación de Laboratorios . Especi-ficaciones de la calidad analitica en laboratorios con distintos niveles de recursos. Quim Clin 2000; 19: 219–36.
- Ricós C, Alvarez V, Cava F, Garcia-Lario JV, Hernández A, Jiménez CV, Minchinela J, Perich M, Simon M. Biological variation database. http:// www.westgard.com/guest21/htm
- Sociedad Espanola de Bioquimica Clinica y Patologia Molecular. Comité de Garantia de la Calidad y Acreditación de Laboratorios. Base de datos de variación biológica. http://www.seqc.es/ bd/vb.htm
- Harris EK. Effects of intra and interindividual variation on the appropriate use of normal ranges. Clin Chem 1974; 20: 1535–42.
- Fraser CG. The utility of population based reference values. In: Biological variation: from principles to practice. Washington: AACC Press; 2001. p. 91–116.
- Harris EK, Boyd JC. Statistical bases of reference values in laboratory medicine. New York: Marcel Dekker Inc; 1995.
- Harris EK, Yasaka T. On the calculation of a "reference change" for comparing two consecutive measurements. Clin Chem 1983; 29: 25–30.
- Hyltoft Petersen P, Fraser CG, Kallner A, Kenny D. Strategies to set global analytical quality specifications in laboratory medicine. Scand J Clin Lab Invest 1999; 59: 475–585.
- Sandberg S, Thue G. Quality specifications derived from objective analyses based upon clinical needs. Scand J Clin Lab Invest 1999; 59: 531–4.
- Stockl D, Baadenhuijsen H, Fraser CG, Libeer JC, Hyltoft Petersen P, Ricós C. Desirable routine analytical goals for quantities assayed in serum. Discussion paper from the members of the External Quality Assessment (EQA) Working Group on analytical goals in laboratory medicine. Eur J Clin Chem Clin Bichem 1995; 33: 157–69.
- Fraser CG, Hyltoft Petersen P, Libeer JC, Ricos C. Proposals for setting generally applicable quality goals solely based on biology. Ann Clin Biochem 1997; 34: 8–12.
- Fraser CG. Quality specifications. In: Biological variation: from principles to practice. Washington: AACC Press; 2001. p. 29–66.