Article History
Accepted: 18 April 2019
First Online: 14 May 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Written informed consent was obtained from the patients for publication and any accompanying images. A copy of the written consent is available for review by the Editor of this journal. This study was carried out respecting the Declaration of Helsinki in its current version. Ethical approval was obtained from the ethics committee Rhineland-Palatinate, Germany (Approval number 2019-14201).
: Written informed consent was obtained from the patients for publication and any accompanying images.