1. Health Care Institution Pharmacy ‘Farmakop’; 92 Nemanjić Blvd. 18000 Niš Serbia
2. Institute for Medicinal Plant Research ‘Dr Josif Pančić’; Department for Pharmaceutical Research and Development; 1 Tadeuša Košćuška St. 11000 Belgrade Serbia
3. Faculty of Medicine; Department of Pharmacy; University of Niš; 81 Dr Zoran Đinđić Blvd. 18000 Niš Serbia