Preslava Ilieva-Gabarska1,2,3, Valeria Racheva4,5
1Department of Diagnostic Imaging and Radiotherapy, Medical University - Pleven, Pleven, Bulgaria
2Nuclear Medicine Laboratory, Medical Center “St. Marina - Diagnostics and Therapy”, Pleven, Bulgaria
3Department of Imaging Diagnostics, Interventional Radiology and Radiotherapy, Medical University - Varna “Prof. Dr. Paraskev Stoyanov”, Varna, Bulgaria
4Department of Clinical Immunology, Allergology and Clinical Laboratory, Medical University - Pleven, Pleven, Bulgaria
5Department of Clinical Laboratory, UMBAL “St. Marina” Pleven, Bulgaria
