**Author details**

Vicente Vanaclocha1 \*, Nieves Saiz-Sapena<sup>2</sup> and Leyre Vanaclocha<sup>3</sup>

1 Department of Surgery, University of Valencia, Valencia, Spain

2 Hospital General Universitario de Valencia, Valencia, Spain

3 Medical School, University College London, London, United Kingdom

\*Address all correspondence to: vvanaclo@hotmail.com

© 2021 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.
