scientific article published on 20 June 2012
author: Thomas Pilgrim, Peter Jüni, Peter Wenaweser, Stephan Windecker, Christoph Huber, Thierry Carrel, Stefan Stortecky, Balthasar Eberle, Steffen Gloekler, Dik Heg, Eberhard Grube, Lutz Buellesfeld, Ulrich Gerckens, Peter Boekstegers
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