**Author details**

Maurilio O. Deininger\*, Orlando G. Oliveira, Daniel M.S. Magalhães and Eugenia Di G. Deininger Alberto Urquisa Wanderley—Unimed Hospital, Sao Francisco Memorial Hospital, Joao Pessoa, Paraiba, Brazil

\*Address all correspondence to: maurilio.od@gmail.com

© 2019 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.
