1. Department of Dermatology and Venereology , University Hospital Centre Zagreb, School of Medicine , University of Zagreb , HR-10000 Zagreb , Croatia
2. Department of Infectious Diseases and Dermatovenereology , Dubrovnik General Hospital , HR-20000 Dubrovnik , Croatia
3. University of Zagreb , Faculty of Pharmacy and Biochemistry, Department of Pharmaceutical Botany , HR-10000 Zagreb , Croatia
4. University of Zagreb , Faculty of Pharmacy and Biochemistry, Department of Pharmacology , HR-10000 Zagreb , Croatia