1. Department of Medicine, College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia
2. Department of Medicine, Geriatric Division, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
3. General Administration of Home Health Care, Therapeutic Affairs Deputyship, Riyadh 12382, Saudi Arabia
4. Department of Internal Medicine, College of Medicine, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
5. Scientific Research Center, Ministry of Defense Health Services, Riyadh 12426, Saudi Arabia
6. Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 12372, Saudi Arabia
7. Saudi Food and Drug Authority, Riyadh 13513, Saudi Arabia