**Author details**

Alf Trojan\*, Christian Lorentz and Stefan Nickel Institute of Medical Sociology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany

\*Address all correspondence to: trojan@uke.de

© 2023 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
