Duplicate of “Functional Mitral Stenosis - A Rare Complication of the Impella Assist Device”, Stefan Toggweiler and Paul Erne.

This paper was published in error and is a duplicate of jen029, which was originally published in issue 9/3. The originally published version of this paper can be found here: 10.1093/ejechocard/jen029, Eur J Echocardiogr (2008) jen002 first published online January 1, 2008 doi:10.1093/ejechocard/jen002.

The paper has been published online in European Journal of Echocardiography Advance Access and the publisher hereby retracts this duplicate paper and discourages citations of it.

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