[1] Cairo University,Neurology Department, Faculty of Medicine
[2] Arabian Gulf University,Internal Medicine Department
[3] Cairo University,Department of Public Health and Community Medicine, Faculty of Medicine
[4] Beni-Suef University,Department of Otolaryngology, Faculty of Medicine
[5] Beni-Suef University,Department of Gastroenterology, Hepatology, and Endemic Medicine, Faculty of Medicine
[6] Beni-Suef University,Department of Internal Medicine, Faculty of Medicine
[7] Beni-Suef University,Department of Critical Care Medicine
[8] Cairo University,Department of Psychiatry Faculty of Medicine
[9] Cairo University,Department of Family Medicine, Faculty of Medicine
[10] Surgical ICU and Pain Management,Department of Anaesthesia
[11] Beni-Suef University,Department of Chest Diseases, Faculty of Medicine
[12] Cairo University,Neurology department
[13] Beni-Suef University,undefined