**Author details**

Wahiba Elhag1 and Walid El Ansari2,3,4\*

1 Department of Bariatric Surgery/Bariatric Medicine, Hamad General Hospital, Doha, Qatar

2 Department of Surgery, Hamad General Hospital, Doha, Qatar


\*Address all correspondence to: welansari9@gmail.com

© 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.
