1. Department of Endocrinology, Hamad Medical Corporation, Doha, Qatar
2. Department of Medicine, Hamad Medical Corporation, Doha, Qatar
3. Department of Medicine, New York Medical College/Metropolitan Hospital Center, New York, NY, USA
4. Department of Medicine, Reading Hospital-Tower Health, West Reading, PA, USA
5. Department of Geriatrics, Hamad Medical Corporation, Doha, Qatar
6. College of Medicine, Qatar University, Doha, Qatar
7. Department of Nephrology, Hamad Medical Corporation, Doha, Qatar
8. College of Medicine, Weill Cornell Medicine, Doha, Qatar