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Müller S, Velik-Salchner C, Edlinger M, Bonaros N, Heinz A, Feuchtner G, Bartel T.Müller S, et al. Among authors: bartel t.J Am Soc Echocardiogr. 2016 Jan;29(1):83-91. doi: 10.1016/j.echo.2015.09.003. Epub 2015 Oct 20.J Am Soc Echocardiogr. 2016.PMID: 26494418