**Author details**

Vittorio Mazzarello\*, Marco Ferrari, Stefano Decandia and Maria Alessandra Sotgiu Skin Lab, Department of Biomedical Sciences, University of Sassari, Sassari, Italy

\*Address all correspondence to: vmazza@uniss.it

© 2018 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.
