Keshmiri, Armin
Maderbacher, Günther
Baier, Clemens
Benditz, Achim
Grifka, Joachim
Greimel, Felix
Article History
Received: 22 July 2018
Accepted: 7 November 2018
First Online: 12 November 2018
Compliance with ethical standards
:
: Each author certifies that he or she has no commercial associations (e.g. consultancies, stock ownership, equity interest, patent/licensing arrangements, etc.) that might pose a conflict of interest regarding the submitted article.
: According to the local ethical committee at the Medical University of Regensburg/Germany, IRB approval was not necessary.