**Author details**

Max H. Kushner, Anna T. Riegel and Ghada M. Sharif\* Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA

\*Address all correspondence to: gms58@georgetown.edu

© 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.

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