Wielders, JPM, Wijnberg, Fa. Preanalytical stability of 25(OH)-vitamin D3 in human blood or serum at room temperature: solid as a rock. Clin Chem 2009;55:1584-5. https://doi.org/10.1373/clinchem.2008.117366.
Lissner, D, Mason, RS, Posen, S. Stability of vitamin D metabolites in human blood serum and plasma. Clin Chem 1981;27:773-4. https://doi.org/10.1093/clinchem/27.5.773.
Ersfeld, DL, Rao, DS, Body, JJ, Sackrison, JL, Miller, AB, Parikh, N, et al.. Analytical and clinical validation of the 25 OH vitamin D assay for the LIAISON automated analyzer. Clin Biochem 2004;37:867-74. https://doi.org/10.1016/j.clinbiochem.2004.06.006.
Antoniucci, DM, Black, DM, Sellmeyer, DE. Serum 25-hydroxyvitamin D is unaffected by multiple freeze-thaw cycles. Clin Chem 2005;51:258-9. https://doi.org/10.1373/clinchem.2004.041640.
Hollis, BW. Measuring 25-hydroxyvitamin D in a clinical environment: challenges and needs. Am J Clin Nutr 2008;88:507-10. https://doi.org/10.1093/ajcn/88.2.507s.
Agborsangaya, C, Toriola, AT, Grankvist, K, Surcel, HM, Holl, K, Parkkila, S, et al.. The effects of storage time and sampling season on the stability of serum 25-hydroxy vitamin D and androstenedione. Nutr Cancer 2010;62:51-7. https://doi.org/10.1080/01635580903191460.
Ocké, MC, Schrijver, J, Obermann-De Boer, GL, Bloemberg, BPM, Haenen, GRMM, Kromhout, D. Stability of blood (pro)vitamins during four years of storage at -20°C: consequences for epidemiologic research. J Clin Epidemiol 1995;48:1077-85. https://doi.org/10.1016/0895-4356(94)00232-F.
Fabregat-Cabello, N, Farre-Segura, J, Huyghebaert, L, Peeters, S, Le Goff, C, Souberbielle, JC, et al.. A fast and simple method for simultaneous measurements of 25(OH)D, 24,25(OH)2D and the Vitamin D Metabolite Ratio (VMR) in serum samples by LC-MS/MS. Clin Chim Acta 2017;473:116-23. https://doi.org/10.1016/j.cca.2017.08.024.
Heijboer, AC, Blankenstein, Ma., Kema, IP, Buijs, MM. Accuracy of 6 routine 25-hydroxyvitamin D assays: influence of vitamin D binding protein concentration. Clin Chem 2012;58:543-8. https://doi.org/10.1373/clinchem.2011.176545.
Depreter, B, Heijboer, AC, Langlois, MR. Accuracy of three automated 25-hydroxyvitamin D assays in hemodialysis patients. Clin Chim Acta 2013;415:255-60. https://doi.org/10.1016/j.cca.2012.10.056.
Cavalier, E, Lukas, P, Crine, Y, Peeters, S, Carlisi, A, Le Goff, C, et al.. Evaluation of automated immunoassays for 25(OH)-vitamin D determination in different critical populations before and after standardization of the assays. Clin Chim Acta 2014;431:60-5. https://doi.org/10.1016/j.cca.2014.01.026.
Cavalier, E, Lukas, P, Bekaert, A-C, Peeters, S, Le Goff, C, Yayo, E, et al.. Analytical and clinical evaluation of the new Fujirebio Lumipulse®G non-competitive assay for 25(OH)-vitamin D and three immunoassays for 25(OH)D in healthy subjects, osteoporotic patients, third trimester pregnant women, healthy African subjects, hemodialyzed and intensive care patients. Clin Chem Lab Med 2015;54:1347-55. https://doi.org/10.1515/cclm-2015-0923.
Moreau, E, Bächer, S, Mery, S, Le Goff, C, Piga, N, Vogeser, M, et al.. Performance characteristics of the VIDAS® 25-OH Vitamin D total assay: comparison with four immunoassays and two liquid chromatography-tandem mass spectrometry methods in a multicentric study. Clin Chem Lab Med 2015;54:45-53. https://doi.org/10.1515/cclm-2014-1249.