Text and Data Mining valid from 2019-08-02
Received: 8 May 2019
Accepted: 26 July 2019
First Online: 2 August 2019
Ethics approval and consent to participate
: The study was approved by the local independent Ethics Committee of the University Hospital Tuebingen.
: Every patient signed our institution’s consent form thus agreeing to publication of their data.
: The authors declare that they have no competing interests.