Authors
Z. Chengolova
Department of Biotechnology, Assen Zlatarov University – Burgas, Bulgaria
R. Ivanova
Laboratory of Microbiology, Heart and Brain Hospital – Burgas, Bulgaria
P. Shentov
Department of Periodontology and Oral Mucosa Diseases, Medical University – Plovdiv, Bulgaria
V. Levterova
Laboratory of Molecular Microbiology, National Center of Infectious and Parasitic Diseases – Sofia, Bulgaria