Family Medicine Department, King Abdulaziz Medical City, National Guard, Riyadh, Saudi Arabia
College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
Obesity, Endocrine and Metabolism Center, King Fahad Medical City, Riyadh, Saudi Arabia
Copyright © 2015 Fahad M. Alshahrani, Mussa H. Almalki et al. This is
an open access article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and reproduction in any
medium, provided the original work is properly cited.