1. Department of Medical Physics and Biophysics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
2. Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
3. Department of Chemistry, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
4. Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria