1. Department of Microbiology and Virology, Faculty of Medicine, Medical University Prof. Dr P. Stoyanov, Varna, Bulgaria
2. Training Sector "Medical Laboratory Assistant", Medical College-Varna, Medical University Prof. Dr P. Stoyanov, Varna, Bulgaria
3. Department of Social Medicine and Health Care Organisation, Faculty of Public Health, Medical University Prof. Dr P. Stoyanov, Varna, Bulgaria
4. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Medical University Prof. Dr P. Stoyanov, Varna, Bulgaria
5. Department of Economics and Health Care Management, Faculty of Public Health, Medical University Prof. Dr P. Stoyanov, Varna, Bulgaria