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Stiene M, Bilitewski U.Stiene M, et al. Among authors: bilitewski u.Anal Bioanal Chem. 2002 Jan;372(2):240-7. doi: 10.1007/s00216-001-1208-4. Epub 2001 Dec 18.Anal Bioanal Chem. 2002.PMID: 11936093