**Author details**

Shay M. Freger and Warren G. Foster\* Department of Obstetrics and Gynecology, McMaster University, Hamilton, Ontario, Canada

\*Address all correspondence to: fosterw@mcmaster.ca

© 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.
