Ketabi, Ali-Reza http://orcid.org/0000-0001-5752-2529
Zelka, Angeliki
Lauer, Hans-Christoph
Hassfeld, Stefan
Article History
Received: 19 January 2021
Accepted: 17 March 2021
First Online: 18 May 2021
Declarations
:
: The study was registered at the University of Frankfurt (file number: 419/2017). The ethical approval of this study was sought and approved by the Medical Council of Baden-Württemberg, Germany (register number F-2014-006-z). The examination was performed in accordance with the Declaration of Helsinki.
: Not applicable.
: Ali Reza Ketabi, Angelika Zelka, Hans-Christoph Lauer and Stefan Hassfeld declare that they have no conflict of interest.