1. “Iuliu Hatieganu” University of Medicine and Pharmacy , Department of Pediatrics I , Cluj-Napoca , Romania
2. Emergency Clinical Hospital for Children , Pediatrics I Department , Cluj-Napoca , Romania
3. “Iuliu Hatieganu” University of Medicine and Pharmacy , Department of Biochemistry , Cluj-Napoca , Romania
4. “Iuliu Hatieganu” University of Medicine and Pharmacy , Department of Pediatrics II , Cluj-Napoca , Romania
5. Emergency Clinical Hospital for Children , Pediatrics II Department , Cluj-Napoca , Romania
6. The Oncology Institute “Prof. Dr. Ion Chiricuţă” Cluj-Napoca , Cluj-Napoca , Romania
7. “Iuliu Hatieganu” University of Medicine and Pharmacy , Department of Immunology and Allergology , Cluj-Napoca , Romania
8. Regional Institute of Gastroenterology and Hepatology “Octavian Fodor” Cluj-Napoca, Cluj-Napoca , Romania
9. Dermatology Clinical Hospital , Cluj-Napoca , Romania
10. Babes Bolyai University , Cluj-Napoca , Romania
11. Emergency Clinical Hospital for Children , Medical Analysis Department , Cluj-Napoca , Romania
12. “Iuliu Hatieganu” University of Medicine and Pharmacy , Department of Immunology and Allergology , Cluj-Napoca, Cluj 400012 , Romania