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Lempinen M, Kylänpää-Bäck ML, Stenman UH, Puolakkainen P, Haapiainen R, Finne P, Korvuo A, Kemppainen E.Lempinen M, et al. Among authors: kylanpaa back ml.Clin Chem. 2001 Dec;47(12):2103-7.Clin Chem. 2001.PMID: 11719473