Authors
Kosi Gramatikoff
Medical University Varna, “Professor Marin Drinov” 55, Bulgaria
Ljubica Milovic
EPAM Systems LLC, Blvd, Belgrade, Serbia
Andrian Minchev
Trakia University, Faculty of Technics and Technologies, Yambol, Bulgaria
Miroslav Karabaliev
Trakia University, Faculty of Medicine, Department of Physics, Biophysics, Roentgenology and Radiology, Stara Zagora, Bulgaria