1. Medical Physics Division, Biophysics Department, Collegium Medicum of Nicolaus Copernicus University, Jagiellońska 13-15, 85-067 Bydgoszcz, Poland
2. Department of Theoretical Foundations of Biomedical Sciences and Medical Informatics, Collegium Medicum of Nicolaus Copernicus University, Jagiellońska 13-15, 85-067 Bydgoszcz, Poland