References
- Hoffmann RG. Statistics in the practice of medicine. JAMA1963;185:864–73.
- Soldin SJ, Brugnara C, Wong EC. Pediatric reference intervals, 5th edn. Washington, DC: AACC Press, 2005.
- Rustad P, Felding P, Franzson L, Kairisto V, Lahti A, Mårtensson A, Hyltoft Petersen P, Simonsson P, Steensland H, Uldall A. The Nordic Reference Interval Project 2000: recommended reference intervals for 25 common biochemical properties. Scand J Clin Lab Invest2004;64:271–84.
- Aksglaede L, Sørensen K, Petersen JH, Skakkebæk NE, Juul A. Recent decline in age at breast development: The Copenhagen Puberty Study. Pediatrics2009;123;e932–9.
- Sørensen K, Aksglaede L, Petersen JH, Juul A. Recent changes in pubertal timing in healthy Danish boys: associations with body mass index. J Clin Endocrinol Metab2010;95: 263–70.
- Pedersen MM, Rustad P, Simonsson P. Certificate of analysis: NFKK Reference serum X: a reprint. Scand J Clin Lab Invest2004;64:321–6.
- Solberg HE. The IFCC recommendation on estimation of reference intervals. The RefVal program. Clin Chem Lab Med2004;42:710–4.
- Lahti A, Hyltoft Petersen P, Boyd JC, Fraser CG, Jørgensen N. Objective criteria for partitioning Gaussian distributed reference values into subgroups. Clin Chem2002;48:338–52.
- Jung B, Adeli K. Clinical laboratory reference intervals in pediatrics: the CALIPER initiative. Clin Biochem2009; 42:1589–95.
- Chan MK, Seiden-Long I, Aytekin M, Quinn F, Ravalico T, Ambruster D, Adeli K. Canadian Laboratory Initiative on pediatric reference interval database (CALIPER):Pediatric reference intervals for an integrated clinical chemistry and immunoassay analyzer, Abbott ARCHITECT ci8200. Clin Biochem2009;42:885–91.
- Blasutig IM, Jung B, Kulasingam V, Baradaran S, Chen Y, Chan MK, Colantonio D, Adeli K. Analytical evaluation of the Vitros 5600 Integrated System in a pediatric setting and determination of pediatric reference intervals. Clin Biochem2010;43:1039–44.
- Kulasingam V, Jung BP, Blasutig BP, Baradaran S, Chan MK, Aytekin M, Colantonio DA, Adeli K. Pediatric reference intervals for 28 chemistries and immunoassays on the Roche cobas 6000 analyzer – A CALIPER pilot study. Clin Biochem2010;43:1045–50.
- Clinical and Laboratory Standards Institute (CLSI). Defining, establishing and verifying reference intervals in the clinical laboratory: approved guideline – third edition. CLSI documentC28-A3; 2008
- Clifford S, Bunker AM, Jacobsen JR, Roberts WL. Age and gender specific pediatric reference intervals for aldolase, amylase, ceruloplasmin, creatine kinase, pancreatic amylase, prealbumin and uric acid. Clin Cim Acta2011;412: 788–90.
- Southcott EK, Kerrigan JL, Potter JM, Telford RD, Waring P, Reynolds GJ, Lafferty AR, Hickman PE. Establishing pediatric reference intervals on a large cohort of healthy children. Clin Chimica Acta2010;411:1421–7.
- National Cholesterol Education Program. Report of the expert panel on blood cholesterol levels in children and adolescents. US Department of Health and Human Services.NIH Publication1991; N0.91-2732.