1. Department of Pediatrics; Pediatric Infectious Disease Unit; Istanbul Faculty of Medicine; Istanbul University; Istanbul Turkey
2. Department of Pediatrics; Pediatric Intensive Care Unit; Istanbul Faculty of Medicine; Istanbul University; Istanbul Turkey
3. Department of Pediatrics; Pediatric Neurology Unit; Istanbul Faculty of Medicine; Istanbul University; Istanbul Turkey
4. Department of Microbiology and Clinical Microbiology; National Influenza Reference Laboratory; Istanbul Faculty of Medicine; Istanbul University; Istanbul Turkey
5. Department of Radiology; Istanbul Faculty of Medicine; Istanbul University; Istanbul Turkey