References
- Touitou Y, Auzeby A, Camus F, Djeridane Y. Daily profiles of salivary and urinary melatonin and steroids in healthy prepubertal boys. J Pediatr Endocrinol Metab 2009;22: 1009–15.
- Hansen ÅM, Garde AH, Persson R. Sources of biological and methodological variation in salivary cortisol and their impact on measurement among healthy adults: a review. Scand J Clin Lab Invest 2008;68:448–58.
- Koller M, Härmä M, Laitinen JT, Kundi M, Piegler B, Haider M. Different patterns of light exposure in relation to melatonin and cortisol rhythms and sleep of night workers. J Pineal Res 1994;16:127–35.
- Hofman LF. Human saliva as a diagnostic specimen. J Nutr 2001;131:1621S–5S.
- de Almeida EA, Di MP, Harumi T, Warren SD, Moscovitch A, Hardeland R, Cardinali DP, Brown GM, Pandi-Perumal SR. Measurement of melatonin in body fluids: standards, protocols and procedures. Childs Nerv Syst 2011;27: 879–91.
- Dressendorfer RA, Kirschbaum C, Rohde W, Stahl F, Strasburger CJ. Synthesis of a cortisol-biotin conjugate and evaluation as a tracer in an immunoassay for salivary cortisol measurement. J Steroid Biochem 1992;43:683–92.
- Demers LM, Derck DD. Comparison of competitive protein binding analysis and radioimmunoassay for the determination of cortisol in serum and urine. ClinBiochem 1977;10: 104–8.
- Matsui F, Koh E, Yamamoto K, Sugimoto K, Sin HS, Maeda Y, Honma S, Namiki M. Liquid Chromatography-tandem Mass Spectrometry (LC-MS/MS) assay for simultaneous measurement of salivary testosterone and cortisol in healthy men for utilization in the diagnosis of late-onset hypogonadism in males. Endocr J 2009;56:1083–93.
- Eriksson K, Östin A, Levin J-O. Quantification of melatonin in human saliva by liquid chromatography-tandem mass spectrometry using stable isotope dilution. J ChromatogrB 2003;794:115–23.
- Jensen MA, Hansen AM, Abrahamsson P, Norgaard AW. Development and evaluation of a liquid chromatography tandem mass spectrometry method for simultaneous determination of salivary melatonin, cortisol and testosterone. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:2527.
- Shibayama Y, Higashi T, Shimada K, Odani A, Mizokami A, Konaka H, Koh E, Namiki M. Simultaneous determination of salivary testosterone and dehydroepiandrosterone using LC-MS/MS: method development and evaluation of applicability for diagnosis and medication for late-onset hypogonadism. J Chromatogr B Analyt Technol Biomed Life Sci 2009;877:2615–23.
- Owen LJ, Haslam S, Adaway JE, Wood P, Glenn C, Keevil BG. A simplified liquid chromatography tandem mass spectrometry assay, using on-line solid-phase extraction, for the quantitation of cortisol in saliva and comparison with a routine DELFIA method. Ann ClinBiochem 2010;47:131–6.
- Rosner MH, Grassman JA, Haas RA. Immunochemical techniques in biological monitoring. Environ Health Persp 1991;94:131–4.
- Welp A, Manz B, Peschke E. Development and validation of a high throughput direct radioimmunoassay for the quantitative determination of serum and plasma melatonin (N-acetyl-5-methoxytryptamine) in mice. J Immunol Methods 2010;358:1–8.
- Hansen ÅM, Garde AH, Persson R. Measurement of salivary cortisol – effects of replacing polyester with cotton and switching antibody. Scand J Clin Lab Invest 2008;68:826–9.
- Van EA, Lanckmans K, Sarre S, Smolders I, Michotte Y. Validation of bioanalytical LC-MS/MS assays: evaluation of matrix effects. J Chromatogr B Analyt Technol Biomed Life Sci 2009;877:2198–207.
- Eurachem, Co-operation on International Traceability in Analytical Chemistry. Quality assurance for research and development and non-routine analysis. 1–50. 1998. United Kingdom, Co-operation on International Traceability in Analytical Chemistry.
- European Cooperation for Accreditation, Eurachem. EA-4/05 Accreditation for Chemical Laboratories. 1, 1–34. 1993. European Cooperation for Accreditation/EURACHEM.
- International Organization for Standardization. ISO 5725-1 Accuracy (trueness and precision) of measurement methods and results. Part 1: General principles and definitions. 1, 1–17. 1994. Geneva, International Organization for Standardization.
- Christensen JM, Poulsen OM, Anglov T. Method evaluation, quality control, and external quality assurance systems of analytical procedures. In: Seiler HG, Sigel A, Sigel H, editors. Handbook on metals in clinical and analytical chemistry. New York: Marcel Dekker, Inc.; 1994. pp. 45–61.
- Eurachem, Co-operation on International Traceability in Analytical Chemistry. Quantifying uncertainty in analytical measurement. Ellison SLR, Rosslein M, Williams A, editors. 2, 1–167. 2000. United Kingdom, Co-operation on International Traceability in Analytical Chemistry.
- Christensen SL, Anglov JTB, Christensen JM, Olsen E, Poulsen OM. Application of a new AMIQAS computer program for integrated quality control, method evaluation and proficiency testing. Fresen J Anal Chem 1993;345:343–50.
- Christensen JM, Olsen E, Kristiansen J. AMIQAS PC-Program. Method Evaluation Quality Control Proficiency Testing. Copenhagen, Denmark: National Institute of Occupational Health; 1998.
- Kristiansen J, Christensen JM. Traceability and uncertainty in analytical measurements. Ann Clin Biochem 1998;35:371–9.
- Hansen ÅM, Kristiansen J, Nielsen JL, Byrialsen K, Christensen JM. Validation of a high performance liquid chromatography analysis for the determination of noradrenaline and adrenaline in human urine with an on-line sample purification. Talanta 1999;50:367–79.
- Garde AH, Hansen ÅM, Nikolajsen TB. An inter-laboratory comparison for determination of cortisol in saliva. Accredit Qual Assur 2003;8:16–20.
- Kristiansen J. Description of a generally applicable model for the evaluation of uncertainty of measurement in clinical chemistry. Clin Chem Lab Med 2001;39:920–31.
- Luboshitzky R, Shen-Orr Z, Herer P. Middle-aged men secrete less testosterone at night than young healthy men. J Clin Endocr Metab 2003;88:3160–6.
- Arendt J. Melatonin and the mammalian pineal gland. 1st edn. Cambridge: Chapman & Hall; 1995.
- Hofstra WA, De Weerd AW. How to assess circadian rhythm in humans: a review of literature. Epilepsy Behav 2008; 13:438–44.