1. In-Charge Drug and Poison Information Center, Prince Mohamed Bin Abdulaziz Hospital, Al Madina Al Monawara, Ministry of the National Guard Health Affairs, Al Madinah Al Monawara, Saudi Arabia
2. Internal Medicine Department, Prince Mohamed Bin Abdulaziz Hospital, Al Madina Al Monawara, Ministry of the National Guard Health Affairs, Al Madinah Al Monawara, Saudi Arabia
3. Internal Medicine Department, National guard health Affairs, Al Madinah Al Monawara, Saudi Arabia