scientific article
author: Robert Grützmann, Sebastian Weis, Matthias Blüher, Michael Stumvoll, Peter Kovacs, Dorit Schleinitz, Jonas Rosendahl, Claudia Ruffert, Moritz Jesinghaus, Peter Bugert, Henning Wittenburg, Volker Keim, Heiko Witt, Joost Ph Drenth, Knut Krohn
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