1. Associate Professor and Chairman, Department of Internal Medicine, College of Medicine and Medical Sciences, King Faisal University, P. O. Box 40006, Al-Khobar 31952, Saudi Arabia
2. Assistant Professor, Department of Family and Community Medicine, College of Medicine and Medical Sciences, King Faisal University, P. O. Box 40006, Al-Khobar 31952, Saudi Arabia
3. Professor, Department of Pharmacology, College of Medicine and Medical Sciences, King Faisal University, P. O. Box 40006, Al-Khobar 31952, Saudi Arabia
4. Associate Professor, Department of Pharmacology, College of Medicine and Medical Sciences, King Faisal University, P. O. Box 40006, Al-Khobar 31952, Saudi Arabia
5. Assistant Professor, Department of Pharmacology, College of Medicine and Medical Sciences, King Faisal University, P. O. Box 40006, Al-Khobar 31952, Saudi Arabia
6. Associate Professor, Department of Pediatrics, College of Medicine and Medical Sciences, King Faisal University, P. O. Box 40006, Al-Khobar 31952, Saudi Arabia