Wagner, Arthur
Prothmann, Sascha
Hedderich, Dennis
Wunderlich, Silke
Meyer, Bernhard
Lehmberg, Jens
Wostrack, Maria
Article History
Received: 10 February 2020
Accepted: 19 March 2020
First Online: 4 April 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was executed in accordance with the Declaration of Helsinki; a positive vote by the local ethics committee was obtained beforehand (Ethikkommission der Technischen Universität München; registration number 5020/11).
: The requirement for written informed consent was waived by the ethics committee due to the study’s retrospective design.