**Author details**

John Camilleri-Brennan1,2

1 Forth Valley Royal Hospital, Stirlingshire, Scotland, UK

2 The University of Glasgow, Glasgow, Scotland, UK

\*Address all correspondence to: johncbrennan@doctors.org.uk

© 2022 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.
