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Wietecha-Posłuszny R, Garbacik A, Woźniakiewicz M, Moos A, Wieczorek M, Kościelniak P.Wietecha-Posłuszny R, et al. Among authors: koscielniak p.Anal Bioanal Chem. 2012 Mar;402(7):2249-57. doi: 10.1007/s00216-011-5442-0. Epub 2011 Oct 16.Anal Bioanal Chem. 2012.PMID: 22002590Free PMC article.