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Hawryłkiewicz I, Pałasiewicz G, Pływaczewski R, Zieliński J.Hawryłkiewicz I, et al. Among authors: plywaczewski r.Pol Arch Med Wewn. 2004 Apr;111(4):449-54.Pol Arch Med Wewn. 2004.PMID: 15517759Polish.