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Parnicka A, Wizner B, Fedyk-Łukasik M, Windak A, Grodzicki T.Parnicka A, et al.Cardiol J. 2013;20(4):356-63. doi: 10.5603/CJ.2013.0093.Cardiol J. 2013.PMID: 23913453Free article.
Siga O, Wizner B, Piotrowicz K, Fedyk-Łukasik M, Grodzicki T.Siga O, et al.Folia Med Cracov. 2017;57(2):73-86.Folia Med Cracov. 2017.PMID: 29121039Free article.