**Author details**

Joseph Roberts, Padraic G. Fallon and Emily Hams\* School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland

\*Address all correspondence to: hamse@tcd.ie

© 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.
