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Authors
Kreidl, Peter
Mayr, Astrid https://orcid.org/0000-0002-8742-2817
Hinterberger, Guido
Berktold, Michael
Knabl, Ludwig
Fuchs, Stefan
Posch, Wilfried
Eschertzhuber, Stephan
Obwegeser, Alois
Lass-Flörl, Cornelia
Orth-Höller, Dorothea
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Article History
Received: 19 April 2018
Accepted: 4 July 2018
First Online: 18 July 2018
Ethics approval and consent to participate
: The Ethics Committee of the Medical University of Innsbruck confirms that for retrospective observational studies no ethics committee approval is required by Austrian law.
: Not applicable
: The authors declare that they have no competing interests.
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