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Sikora A, Zimmermann BG, Rusterholz C, Birri D, Kolla V, Lapaire O, Hoesli I, Kiefer V, Jackson L, Hahn S.Sikora A, et al. Among authors: kiefer v.Clin Chem. 2010 Jan;56(1):136-8. doi: 10.1373/clinchem.2009.132951. Epub 2009 Nov 2.Clin Chem. 2010.PMID: 19884486
Li Y, Holzgreve W, Kiefer V, Hahn S.Li Y, et al. Among authors: kiefer v.Clin Chem. 2006 Dec;52(12):2311-2. doi: 10.1373/clinchem.2006.076257.Clin Chem. 2006.PMID: 17138855No abstract available.