**Author details**

Tudor-Ștefan Rotaru1,2

1 University of Medicine and Pharmacy "Gr. T. Popa", Iași, Romania

2 "Alexandru Ioan Cuza" University of Iași, Iași, Romania

\*Address all correspondence to: tudor.rotaru@umfiasi.ro

© 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.
