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Pająk A, Szafraniec K, Janion M, Szpak A, Wizner B, Wolfshaut-Wolak R, Broda G, Cichocka I, Drygas W, Gąsior Z, Grodzicki T, Zdrojewski T; Polkard study group.Pająk A, et al. Among authors: szafraniec k.Kardiol Pol. 2010 Dec;68(12):1332-40.Kardiol Pol. 2010.PMID: 21174285
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