?:authorAffiliation
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[\'Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center Essen, University Duisburg-Essen, Essen, Germany.\', \'3rd Department of Medicine, University Hospital Heidelberg, Heidelberg, Germany.\', \'Department of Cardiology, University Medical Center Mainz, Johannes Gutenberg-University Mainz, Mainz, Germany.\', \'Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center Essen, University Duisburg-Essen, Essen, Germany. frank.breuckmann@uk-essen.de.\']
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