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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: The author has accepted responsibility for the entire content of this manuscript and approved its submission.
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Competing interests: The author declares no competing interests.
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Research funding: None declared.
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Data availability: Not applicable.
References
1. Guillaume, L, Chapelle, V, Deltombe, M, Nevraumont, A, Mairesse, A, Maisin, D, et al.. Biological variation of CA 15-3, CA 125 and HE 4 on lithium heparinate plasma in apparently healthy Caucasian volunteers. Clin Chem Lab Med 2023;61:1319–26. https://doi.org/10.1515/cclm-2022-0966.Search in Google Scholar PubMed
2. Bray, F, Ferlay, J, Soerjomataram, I, Siegel, RL, Torre, LA, Jemal, A. Global cancer statistics 2018: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. Ca-Cancer J Clin 2018;68:394–424. https://doi.org/10.3322/caac.21492.Search in Google Scholar PubMed
3. Sandberg, S, Fraser, CG, Horvath, AR, Jansen, R, Jones, G, Oosterhuis, W, et al.. Defining analytical performance specifications: consensus statement from the 1st strategic conference of the European Federation of Clinical Chemistry and laboratory medicine. Clin Chem Lab Med 2015;53:833–5. https://doi.org/10.1515/cclm-2015-0067.Search in Google Scholar PubMed
4. Aarsand, AK, Fernandez-Calle, P, Webster, C, Coskun, A, Gonzalez-lao, E, Diaz-Garzon, J. The EFLM biological variation database. https://biologicalvariation.eu/ [Accessed 29 Sep 2023].Search in Google Scholar
5. Carobene, A, Strollo, M, Jonker, N, Barla, G, Bartlett, WA, Sandberg, S, et al.. Sample collections from healthy volunteers for biological variation estimates’ update: a new project undertaken by the Working Group on Biological Variation established by the European Federation of Clinical Chemistry and Laboratory Medicine. Clin Chem Lab Med 2016;54:1599–608. https://doi.org/10.1515/cclm-2016-0035.Search in Google Scholar PubMed
6. Braga, F, Panteghini, M. Generation of data on within-subject biological variation in laboratory medicine: an update. Crit Rev Clin Lab Sci 2016;53:313–25. https://doi.org/10.3109/10408363.2016.1150252.Search in Google Scholar PubMed
7. Roraas, T, Petersen, PH, Sandberg, S. Confidence intervals and power calculations for within-person biological variation: effect of analytical imprecision, number of replicates, number of samples, and number of individuals. Clin Chem 2012;58:1306–13. https://doi.org/10.1373/clinchem.2012.187781.Search in Google Scholar PubMed
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