**Conflict of interest**

The authors declare no conflict of interest.

### **Author details**

David Freiholtz\*, Per Eriksson and Hanna M. Björck Karolinska Institutet, Stockholm, Sweden

\*Address all correspondence to: david.freiholtz@ki.se

© 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.
