Received: 3 February 2020
Accepted: 30 April 2020
First Online: 26 May 2020
Compliance with ethical standards
: Author Carina Riediger has received research grants from Siemens for a different project. Author Verena Plodeck owns stock in Siemens. Authors Johannes Fritzmann, Alexander Pape, Alexander Kohler, Björn Lachmann, Thea Koch, Jens-Peter Kühn and Ralf-Thorsten Hoffmann declare that they have no conflict of interest. Jürgen Weitz has received research grants from Siemens for a different project.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This article does not contain any studies with animals performed by any of the authors.
: Informed consent was obtained from all individual participants included in the study.