Text and Data Mining valid from 2018-07-09
Received: 16 May 2018
Accepted: 25 June 2018
First Online: 9 July 2018
Ethics approval and consent to participate
: Local ethics committee approval was not required because of the use of cadaveric disidentified specimens. The scientific committee of our anatomical department approved our study protocol.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.