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Saraste M, Vesalainen RK, Ylitalo A, Saraste A, Koskenvuo JW, Toikka JO, Vaittinen MA, Hartiala JJ, Airaksinen KE.Saraste M, et al. Among authors: airaksinen ke.J Am Soc Echocardiogr. 2005 Jun;18(6):679-85. doi: 10.1016/j.echo.2004.09.016.J Am Soc Echocardiogr. 2005.PMID: 15947773Clinical Trial.