Received: 25 September 2017
Accepted: 19 March 2018
First Online: 28 June 2018
Ethics approval and consent to participate
: The patient study was approved by the internal ethical committee of Kantonsspital Baden and written informed consent was obtained from all included patients.
: 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.