Author(s) affiliations:Stefka Valcheva-Kuzmanova1, Galya Stavreva2, Violeta Dancheva3, Ljudmil Terziev4, Milena Atanasova5, Angelina Stoyanova6, Anelia Dimitrova7, Veneta Shopova3
1 Department of Preclinical and Clinical Pharmacology and Toxicology, Medical University, Varna, Bulgaria
2 Department of Experimental and Clinical Pharmacology, Medical University, Pleven, Bulgaria
3 Department of Disaster Medicine, Medical University, Pleven, Bulgaria
4 Department of Clinical Laboratory, Clinical Immunology and Allergology, Clinic of Allergology, University Hospital, Pleven, Bulgaria
5 Department of Biology, Medical University, Pleven, Bulgaria
6 Department of Chemistry, Medical University, Pleven, Bulgaria
7 Department of Physiology and Pathophysiology, Medical University, Pleven, Bulgaria