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Authors
Hecht, Alexander M.
Braun, Beate C.
Krause, Eberhard
Voigt, Christian C.
Greenwood, Alex D.
Czirják, Gábor Á.
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Article History
Received: 17 March 2015
Accepted: 15 October 2015
First Online: 20 November 2015
Competing interests
: The authors declare no competing financial interests.
