1 Department of Microbiology and Immunology, Faculty of Medicine, Mutah University, Al-Karak, Jordan.
2 Department of Pediatrics, School of Medicine, University of Jordan, Jordan. Previous address: Department of Pediatrics, College of medicine, University of Mutah, Jordan.
3 Department of Special Surgery, Faculty of Medicine, Mutah University, Al-Karak, Jordan.
4 Prince Ali Bin Al Hussein Hospital, Al-Karak, Jordan.