**Author details**

Inés Llamas-Ramos1† and Rocío Llamas-Ramos1,2\* †

1 University of Salamanca, C/ Donantes de Sangre s/n, 37007, Salamanca, Spain

2 FREMAP, C/ Las Eras, esquina Pollo Martín, n° 11, 37005, Salamanca, Spain

\*Address all correspondence to: rociollamas@usal.es

† Both authors equally contributed as first authors in the manuscript.

© 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.
