**Author details**

Mihai Botea1,2

1 University of Oradea, Pelican Clinic Hospital, Romania

2 Senior Clinical Fellow at St Bartolomew's Hospital, London, UK

\*Address all correspondence to: drmob78@yahoo.com

© 2020 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.
