Article History
Received: 11 July 2019
Accepted: 14 October 2019
First Online: 12 November 2019
Compliance with ethical standards
:
: The authors declare that there is no conflict of interest.
: Ethical approval (No. 92_13B) was obtained from the medical faculties’ ethics committee of the Friedrich-Alexander-University Erlangen-Nuremberg, Germany.
: Informed consent for participation in the study and surgical consent prior to the intervention was obtained from every patient at the time of enrollment.