**Author details**

Antonella Paladini1 and Giustino Varrassi2,3\*

1 Department of MESVA, University of L'Aquila, L'Aquila, Italy


\*Address all correspondence to: giuvarr@gmail.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.
