1. College of Medicine, Warith Al Anbiyaa University, Karbala, Iraq
2. Department of Internal Medicine, Al Nasiriyah Teaching Hospital, Thi Qar, Iraq
3. College of Medicine, University of Drexel, Philadelphia, PA, USA
4. Faculty of Medicine and Pharmacy of Rabat, Mohammed V University of Rabat, Rabat, Rabat-Sale-Kenitra, Morocco