Stanislav Kochev, Stanislava Stoicheva, Valentina Belcheva, Evgeni Grigorov Faculty of Pharmacy, Medical University “Prof. d-r Paraskev Stoyanov”, Varna
Simeon Georgiev1, Iva Parvova2, Еmil Hristov1, Sava Ognyanov1 1Faculty of Chemistry and Pharmacy, SU ”St.Kliment Ohridsky” 2Clinic of Rheumatology, Department of Internal Medicine, Medical University of Sofia