Weidhase, Lorenz http://orcid.org/0000-0002-5044-4414
Wellhöfer, Daniel
Schulze, Gero
Kaiser, Thorsten
Drogies, Tim
Wurst, Ulrike
Petros, Sirak
Article History
Received: 22 November 2018
Accepted: 8 February 2019
First Online: 13 February 2019
Ethics approval and consent to participate
: This study was carried out according the declaration of Helsinki in 1964. The study was approved by the local ethics committee (Ethik-Kommission an der Medizinischen Fakultät der Universität Leipzig, 281/12-ek).
: Our manuscript does not contain any individual person’s identifiable data or information. Because of retrospective character of the study, consent to participate was not applicable and our local ethic committee approved the waiver.
: The authors declare that they have no competing interests.
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